When I was a little kid I rolled down a hill and broke my leg.
我小的时候曾滚下山摔断了腿。
My leg is giving me much less pain but still aches when I sit down.
我的腿疼痛减轻了许多，但是当我坐下时还是会疼。
You might fall down there and break your leg.
你可能会摔下去把腿摔断的。
He fell down from the tree and hurt his left leg.
他从树上摔下来，伤了左腿。
She nearly fell down by stumbling over my stretched leg.
她绊在我伸出的腿上，险些跌倒。
Or if one of our cats comes up to say hello, rubs itself on my leg and settles down for a nap near me... yep: great day!
再或者，如果我们的某只猫走过来跟我打招呼，再拿身子在我腿上蹭，然后靠近我躺下来打个盹儿…没错：奇妙无比的又一天！
If you have sciatica, this will be very painful, marked by a burning sensation or a feeling of electric shock down your leg or in your upper back.
如果你有坐骨神经痛，那么这会让你疼痛难忍，这个感觉类似于燃烧或者电击，会从你的腿一支传导到你的背部上方。
We tagged one of the amino acids (from which proteins are made) so that we could discover how much protein in leg muscle was being broken down.
我们追踪了一种氨基酸(形成蛋白质的必需品)，这样我们就能发现腿部肌肉中流失了多少蛋白质。
If that chair you sat down in this morning has a bad leg, it's going to fall when you sit on it, regardless of what you believe about it.
假设你早上所坐过的那张椅子的腿坏折了，当你再坐上它的时候就会摔倒，这和你是否相信它是无关的。
Spring tendons enhance the foot’s efficiency: some of the energy spent to drop one’s weight down when taking a step is actually stored and then returned to the leg as it rebounds.
人们走路每迈出一步，重量落下时所输出的一部分能量，事实上被脚弓存储起来，然后被脚弓弹起，这部分能量就又返回到腿部。
Look, you might fall down there and break your leg, and that would give you dreadful pain!
看呀，你很可能摔下去把腿摔断啊，那样会很疼的哦！
With that the little boy stepped back from the fence, reached down, and began rolling up one leg of his trousers.
听完这番话，小男孩往后退了一步，坐下来，卷起一只裤脚。
down with your right leg, down with the left. After one minute, switch and do one minute starting with the left leg.
做了一分钟之后，换腿，先上左腿，再上右腿，先下左腿，再下右腿。
His right pant leg was rolled up to the knee, and on the end of his big toe was a plastic weight from his dad's weightlifting set. Every second or so, Hayden flexed his toe up, then down.
海登的右腿上，裤子被卷到膝盖，一块从他爸爸的举重器材上取下来的塑料板，正套在他那超级大拇趾的底端，每隔大约一秒钟的时间，他便上下伸展或弯曲一下他的大拇趾。
Most important, weak growth prepares the ground for a second leg down, back into recession — the "W-shaped" recession that may emerge in late 2010 or 2011 that markets seem to have forgotten about.
最重要的是，乏力的增长总是为第二轮下跌，也就是重回衰退预备场地——“W”型的衰退或许会在2010年或2011年出现，市场似乎已经忘记了这一点。
Bend the front knee, keeping the back leg straight, press the right heel down on the floor.
前腿膝关节弯曲，后腿保持绷直状态，右脚后跟贴紧地面并向下压。
My father told me that he fell down the stairs and his leg was badly hurt.
我爸爸告诉我他从楼梯上摔了下来，腿伤的很严重。
He fell down the stairs and broke his right leg.
他跌下楼梯摔断了右腿。
In a lunge position, place your right foot on a bench or a step at knee height, and place both hands, palms down, on your right knee, keeping your left leg straight.
以弓箭步姿势，将你的右脚放在一个齐膝的长凳或台阶上，双手抚右膝，保持左腿伸直。
Other signs include pain radiating into the hip socket, or down the outside of the leg, or deep inside the belly over the anterior surface of the S-I joint.
其他特征还有，疼痛呈辐射状向大腿窝或腿部发散，或者越过骶髂关节向腹腔内部发散。
The sure-fire test for runner's knee: sit down and put your leg out on a chair so that it's stretched out straight.
确诊的方法：坐下来，将一条腿伸直放在椅子上。
Mutombo, an 18-year NBA veteran, appeared to get tangled with Portland center Greg Oden and came down hard on his left leg late in the first quarter of Game 2.
在NBA打拼了18年的老球员穆托姆博，在第二节后段，很不凑巧与波特兰中锋格雷戈·奥登相撞，重重地用左腿支撑倒地。
In THE summer of 1912 Harry Houdini was clapped in manacles and leg-irons, stuffed into a crate that had been weighed down by lead, and dropped from a tugboat into New York's East River.
在1912年夏天，HarryHoudini被拷在手铐和脚镣中，塞进一个灌铅的小木箱，然后从一艘拖船上被扔进纽约的东河中。
In THE summer of 1912 Harry Houdini was clapped in manacles and leg-irons, stuffed into a crate that had been weighed down by lead, and dropped from a tugboat into New York's East River.
在1912年夏天，HarryHoudini被拷在手铐和脚镣中，塞进一个灌铅的小木箱，然后从一艘拖船上被扔进纽约的东河中。
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