She cast around desperately for a safe topic of conversation.

她绞尽脑汁寻找稳妥的话题。

《牛津词典》

There was a time when talking about the weather was a safe topic of conversation.

曾几何时，天气是一个安全的谈论话题。

youdao

There was a time when talking about the weather was a safe topic of conversation.

曾几何时，天气是一个安全的谈论话题。

youdao