查询词典 have trouble doing sth.

Add sth. to sth.

我把糖添加到水里。

Add to sth increase sth 增加某事物: The bad weather only added to our difficulties.

这种坏天气更增加了我们的困难。

Add to sth increase sth 增加某事物: The bad weather only add ed to our difficulties.

这种坏天气更增加了我们的困难。

Add sth to sth

把。加到。

beef sth up (infml 口 esp US) add force or weight to sth 加强;加重: The new evidence beefed up their case.

有了新的证据，他们的理由更充足了。

Weight: make sth heavy, add weight to sth 使重;加重 They weighted the balloon to prevent it from flying away.

他们给气球增加重量，以防止它飞走。

Advise sb. to do sth.---- suggest sb. to do sth.

建议某人做某事做某事

Try to persuade sb. to do sth./ advise sb. to do sth

劝说某人做某事（指劝的动作，不指结果。

Advise sb. to do sth.=try to persuade sb. to do sth.

说服某人做某事，不涉及是或成功

Advise sb. to do sth.和 try to persuade sb. to do sth.

意为"劝某人做某事"，强调动作。

In other research, chondroitin is being investigated for use in several other conditions.

在其它研究，软骨素被调查用於几个其它情况。

They would make fun of him for having to work.

他们拿他的工作来开玩笑。