Seven per cent of our body weight is blood.

重的7%为血液。

What makes up about 15 percent of our body weight?

什么物质构成我们重的15%？

That applied to people in a range of body weight categories.

于不同重类别的人。

The tortoises had lost about 10 percent of their body weight.

两只乌龟的重下降了10%。

They'll eat a third of their body weight every day!

它们每天能吃掉重量达自身重三分之一的食物。

You're using your body weight, not necessarily your muscles.

的重，而不肌力量。

After he loses half his body weight, of course.

当然 在他减掉了一半的重后。

But teens get mixed messages about what's a healthy body weight.

但就何为健康的重很多青少年都一知半解。

Finally, you land with a force equivalent to seven times your body weight.

最后，落地时的受力会重的七倍。

So they need to eat 25 percent of their body weight every day.

“所以它们每天需要吃掉相当于自身重25%的食物。”

This male's antler size and body weight give him a clear advantage.

头公鹿的鹿角大小与重使它具备了明显的优势。

It must eat up to 50 percent of its body weight every day.

它们每天得吃下相当于自身重百分之五十的食物。

On the whole, participants reduced their body weight by about 3 percent.

总来说，参与者的重平均减轻了3%。

Today, we eat up to half our body weight in sugar every year.

如今我们每年吃掉的糖相当于自己重的一半。

Water makes up 50 to 70 percent of an adult's total body weight.

一个成年人重的50%—70%由水组成。

It uses the inertia of its own body weight to spin each side.

它利自身重的惯性来旋转每一边。

When sloths eliminate, they can loose about a third of their body weight.

当树獭便便完毕，它们可以减轻大约三分之一的重。

One locust can eat its entire body weight in just 24 hours.

一只蝗虫可以在24小时内吃掉和重相当的食物。

" Hello, " he says, stretching, shifting his body weight back to the first foot.

“嗨。”他说着，伸展了一下身躯，重心回到之前那只脚。

Sloths can lose an astonishing 30 percent of their body weight each time they go.

树懒每次外出都可以排泄掉惊人的 30% 重。