他举手回答问题。（实际的“提高”。）

He raised his arm to answer the question.

youdao

如果你能回答这个问题请举手。

Please hand up if you can answer the question.

youdao

在课堂上，你想回答问题时，请举手。

When you want to answer a question in class, please raise hand.

youdao

如果你们能回答这个问题，请举手。

If you can answer this question, put up your hands.

youdao

他举手并回答了问题。

He raised his hand up and answered the question.

youdao

回答问题请举手。

Raise your hand to ask a question.

youdao

回答问题请举手。

Raise your hand to ask a question.

youdao