Go around the class helping pupils plan what to say.

在班级里帮助学生计划要说的话。

Ali couldn't give Jalal any advice because he didn't know what to say.

阿里不能给贾拉尔任何建议，因为他不知道该说什么。

A screenplay is for actors so that they can learn what to say and do in a film before they act it.

剧本是为了让演员在表演前知道该说什么和做什么。

He smiled awkwardly, not knowing what to say.

他尴尬地笑了笑，不知道该说什么。

He answered the question blankly, not knowing what to say.

他茫然地回答了问题，不知道该说什么。

She knew exactly what to say to make him feel better.

她知道确切地该说什么才能让他感觉好些。

When you don't know what to say, remember silence is gold.

当你不知道该说什么时，记住沉默是金。

She looked at him uncertainly, unsure of what to say next.

她不确定地看着他，不知道接下来该说什么。

There was a moment of awkwardness when no one knew what to say next.

当没有人知道接下来该说什么时，有一阵尴尬的沉默。

He couldn't remember what to say.

他不能提醒该说什么了。