normal前面用什麼介詞

前面用介詞in，例如：

1、Divorce is complicated enough in normal circumstances， but this situation is even worse.在一般情況下，離婚已經夠複雜了，但這一次情況更糟。

2、In the normal course of events she would have gone with him.要是事情發展順利的話，她已同他一塊兒走了。

3、In the normal course of things we would not treat her disappearance as suspicious.在一般情況下，她不露面，我們也不會覺得有什麼可疑之處。