Fluids
n. 液体；流体（fluid的复数形式）
🗣️ 情景例句
I'd like to buy some stamps for this letter.
我想买这封信的邮票。
I feel like vomiting.
我想呕吐。
and one odd finding that makes the problem puzzling is that it looks very much as if sleeping is not simply a matter of giving the body a rest.
一项使人对这个问题感到困惑的奇怪的发现是，睡眠在很大程度似乎并不仅仅是为了使身体得到休息。