A table can only hold so much weight before it collapses.
一张桌子只能承受一定的重量，否则它就会倒塌。
If you tried to lose weight before and failed, please take heart!
如果您在之前尝试过减轻体重并失败了，请振作！
If you're overweight before you conceive, you might need to gain less weight.
如果在怀孕前你有些超重，那么你需要减肥了。
To reduce your risk of complications you may need to lose some weight before surgery.
为降低手术综合风险，你需要术前先瘦身。
I've never tried weight-lifting before.
我以前从未试过举重。
But we need to give you time to get taller before you add more weight.
但是我们要在你增加体重之前，为你增高多留些时间。
You've probably heard that drinking water before you eat can help you lose weight.
你可能已经听说过饭前喝水可以有助于减肥。
A new study says that drinking water before meals can help you lose weight.
一项最新研究指出饭前喝水有助于减肥。
You know those weight loss "before and after" pictures?
你知道那些减肥“前后”的照片吗？
Every time before going to a fashion week, I make an effort to lose weight.
每次去时装周前我都要减肥。
A weight, terms with a lower weight will appear before those with a higher weight.
Weight(权值)，具有较低权值的词汇将出现在具有较高权值的词汇前面。
On the morning before starting the fast, write down your starting weight.
早晨开始禁食前，记下你的体重。
Before polishing, also slight weight loss, could be ignored.
打磨前称个体重，同样轻微损耗，忽略不计。
Then I left, with such a weight on my mind as I had never had before.
然后我离开了，带着一种从未有过的沉重心情。
Slimed herself to be half weight as before.
她使自己的体重减轻到原来的一半。
Then I left it, feeling a weight at my heart such as I had never had before.
然后我离开那里，心头感到一种前所未有的沉重心情。
Read the label to be sure of the size or weight of a product before you buy it.
你买一件东西之前，要先看标签、弄清楚体积或重量。
Before others, best before DianDian his own weight.
在说别人之前，最好先掂掂自己的份量。
Before you say anything, have you lost weight?
你先别说，你减肥成功了吗？
One said, "Do exercise before breakfast and you will lose weight. " Another said, "Do exercise an hour after breakfast or it will harm your body.
有些说”吃早饭前锻炼身体有助减肥”，有些又说”先吃早饭，饭后一小时才能锻炼，不然对身体有害”。
The weight, height and physical capacity before and after intervention were measured.
干预前后进行体重、身高、体能等测试。
Then I left it, feeling a weight at my heart such as I had never had before.
然后我离开那里，心头感到一种前所未有的沉重心情。
Much as I hope I may gain weight, (yet) I am still as thin as before.
那些动物体重明显下降，瘦多了，简直是憔悴不堪。
Much as I hope I may gain weight, (yet) I am still as thin as before.
那些动物体重明显下降，瘦多了，简直是憔悴不堪。
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