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呼和浩特和林格尔县开内眼角的费用排名对话

2018年04月23日 06:15:46 | 作者:中医优惠 | 来源:新华社
在这一令人眼花缭乱的演讲中,乔纳森·德罗里展示了开花植物 -- 超过25万个物种 -- 进化出的吸引昆虫来帮它们传播花粉的非凡的方式:生长出“降落跑道”来引导昆虫进入,在紫外线下闪耀,构建精心制作的陷阱,甚至模仿其他发情期的昆虫。 Article/201501/355549For any desert-island survivor,the priorities are protection,rescue, water, and food.对于荒岛求生者而言 必先找到栖身之处 寻求救援 寻找水源和实物But first, orientate yourself and work out your options.首先 要适应环境 明确逃生方案Here the way to do that is to get a bird#39;s-eye view of the island from its highest point.要做到这一点 我建议你 找到全岛的制高点 鸟瞰全岛But, look, there is a crack running straight up that#39;s much narrower.快看 这有个垂直的狭窄裂缝 直通向山顶Might be able to chimney up that.爬它 就像爬烟囱一样It#39;s about 100 feet to the top,and it looks like a challenging climb.山脚到山顶约100英尺高 想要攀登上去 极具挑战性From here, it does look pretty darn sheer.从这里看 这实在太陡了Just so sharp and crumbly and exposed.山体陡峭 容易松动 久经海风侵蚀Climbs like this are best broken into sections and tackled one step at a time.攀登这样的山壁最好分成几个步骤 一步一个脚印的走The rock is hard on the hands and unpredictable underfoot,用手抓住岩壁不容易 而且还得小心脚下的突发状况and it#39;s proving hard to find reliable holds.事实明 攀爬时很难找到手能抓稳的地方Here I#39;ve got to stretch my limbs to the max to make any sort of progress.我得最大限度的伸展身体 才能一步一步向上爬But I#39;ve made it up the first section.Okay, let#39;s bring you up to this bit.我完成了第一步 好的 我们再爬高点Then we#39;re gonna face the real music top bit of this chimney. 终极的挑战来了 这根;烟囱;的顶端This is where the hard work really begins.艰巨任务 从此刻正是展开The climb here is sheer all the way to the top.这个极陡峭的崖壁 直通峰顶 Article/201703/499227On this ice cliff you can actually see在这个冰崖,你能清晰看到the transformation of snow into ice as it happens.雪变成冰的过程Each year#39;s snowfall creates distinct layers many feet deep.每年的降雪都造成明显的雪层,许多数米厚Now, above me is the fresh snow from this winter,现在,在我上方是今年新下的雪and down here, this brown line is the melt from the summer before.接下来,看这些褐色线,是夏天前融化的So as you go down through these layers, the snow gets older and older.所以你越深入观察这些雪层,雪堆积的时间越久远It#39;s kind of like the rings of a tree就像树的年轮with each layer being a new layer of snowfall,老雪层被新雪层套着and it#39;s the weight of all those snowfalls building up所有这些雪崩的重量that starts to compress the individual snowflakes together.是由独立的雪花压缩而成的The further down the layers you go,越往下接触的雪层就the harder the snow becomes until you reach here.越硬,到了这里This is a really distinctive set of snow.这是很特别的雪It#39;s called neve and it formed several years ago.叫做粒雪,数年前形成It#39;s really hard, I mean, I have to dig at it with my ice axe.这真的很硬,我用冰镐挖它It#39;s amazing stuff. It#39;s kind of Like a bubbly fibreglass.这是神奇的聚集物就像气泡玻璃纤维It#39;s beautiful.真漂亮 Article/201510/401788

栏目简介:《造物小百科How it#39;s made》介绍了许多东西的制作或者说发明方法,非常实用。其中的英语视频发音地道,内容浅显易懂,过程形象生动,是提高英语听力水平,积累英语知识和一些简单生活常识的好素材。 Article/201509/392010

The educational materials presented here were developed此处展示的教育材料由by students and faculty of the department of food爱荷华州立大学食品科学与营养学的师生science and human nutrition at Iowa State University.共同制作Funding for this project was provided from grants from该项目资金由the American Cancer Society Mid West美国癌症协会中西部分会及and the Lance Armstrong Foundation.兰斯,阿姆斯特朗基金会共同资助The materials are intended for educational use and此资料仅旨在教学使用are not meant to provide medical advice.无意提供任何医学建议We welcome your feedback about these materials.我们期待您对这些资料的意见反馈Please use the evaluation survey link on the homepage请使用主页上的教育调查链接to provide your comments and suggestions.发表您的意见和建议Physical exercise is any bodily activity that体育锻炼指的是任何可以促进或维持身体健康enhances or maintains physical fitness and wellness.的体育活动It is recommended that people engage in some type建议人们每周要有几天,最好每天of aerobic activity for at least 30 minutes至少花费30分钟on most days and preferably all days of the week.进行有氧运动Exercise promotes a healthy lifestyle and锻炼能够促进健康的生活方式has many other benefits.并且有很多其他的益处This presentation will examine the basics of exercise.这个展示将会探讨锻炼的基本要素Studies have shown that after age 25研究表明the body loses muscle mass25岁之后身体肌肉含量at a rate of 4% of its remaining mass per decade.每十年下降百分之四After age 50 the muscle mass is lost50岁之后肌肉量将每十年by approximately 10% each decade.损失约百分之十This loss of muscle mass affects such things as your肌肉量的损失会影响到你的心脏heart as it is a muscle, mobility and decreases因为心脏就是一个肌肉组织,还会影响身体your metabolism which can lead to weight gain.的活动能力和新城代谢,从而导致体重的增加The way to prevent these loses is to exercise.避免这些损失的方法便是锻炼身体There are many more benefits to regular exercise定期锻炼有很多好处such as improving your mental health or mood,比如改善你的精神健康或情绪combating chronic disease, help manage weight,抵御慢性疾病,帮助控制体重strengthen the heart and lungs强心健肺and promote better sleep.促进睡眠There are several types of exercise;锻炼包括几种类型,即aerobic, anaerobic, strength training or有氧训练,无氧训练,力量或抗阻力训练resistance training and flexibility.和柔韧性练习The best recipe for overall health is to engage in实现身体全面健康的秘诀就是all 4 types of exercise. Aerobic means with oxygen这四种锻炼都参与,有氧意味着氧气的参与and refers to the use of oxygen并涉及在身体新陈代谢或能量生成过程中in the body#39;s metabolic or energy generating process.氧气的使用Many types of exercise are aerobic and很多类型的锻炼都属于有氧训练it#39;s also referred to as cardiovascular.它也被称为心血管锻炼These exercises include such activity as walking,这种锻炼包括走路,跑步running, swimming, cycling and climbing stairs.游泳,骑自行车和爬楼梯Anaerobic exercises are done in non endurance无氧训练一般都是在无耐力需求的活动中activities to promote strength, speed and power提升身体强度,速度和力量and by body builders to build muscle mass.健身者借此来塑造身体肌肉Such exercises include lifting weights, jumping,这类的锻炼包括举重,跳跃运动running in a short powerful sprint.短跑Strength training or resistance exercises are defined力量或抗阻力训练被界定为as the use of resistance to muscle contraction.利用阻力对抗肌肉收缩These exercises are done in order to build the进行这类锻炼是为了strength, anaerobic endurance and size of muscles提升力量,无氧耐力和体内肌肉的大小in the body. Flexibility exercises refer to the range柔韧性练习指的是人体关节的活动范围of movement in joints and the length in muscles.以及肌肉的拉伸Flexibility can increase or decrease柔韧性depending on the amount of stretching依人体肌肉和关节的拉伸量done to the muscles and joints of the body.增加或减少 Article/201501/356570

TED演讲集 那些匪夷所思的新奇思想 Article/201612/480368

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