circumstance前用什么介词

circumstance前用介词: in

I am worried about the company\'s current operating circumstances.

我很担心公司现在的运营状况。

This student\'s family economic circumstance is not very good.

这位学生的家庭经济条件不是很好。

I think she coped very well under the circumstances.

我觉得在那种情况下她处理得很不错。

I know I can trust her in any circumstance.

我知道我在任何情况下都能信任她。