I wonder why he is crying.

我不知道他为什么在哭。

youdao

He is crying because I won't give him any.

因为我不给他，他就哭了。

youdao

He is crying, but there is no money to buy medicine.

他正在哭闹着，可是他们没有钱买药。

youdao

He is crying for a reason. If you never pick him up, he's going to keep crying.

VOA: special.2010.05.13

but the friend does not look like he is in a good mood. In fact, he had many drinks and he's crying.

但你的朋友看起来情绪不佳。事实上，他喝了很多，并且在掉眼泪。

It seems 课堂 - SpeakingMax英语口语达人

"Salvador is a Hispanic kid. He told me he's no wimp, but he was crying - a wimp, I just want to change."

VOA: standard.2010.04.29

"This police service and the public it serves is crying out for redefined direction, " he told Mr Straw.

BBC: Jack Straw speaking to the Police Federation

"One of them was crying all the way, screaming, 'My friend is dying, '" he said.

NPR: No Alarm, Only 1 Exit In Brazil Nightclub Fire