In that case

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We use this expression to say that something will happen because it is a special or unusual situation.

我们用这个表达来表示某件在特殊或不平常条件下而发生的事。

A: They don't normally start interviewing people until after lunch.

在午餐结束之前，他们一般都不会开始面试。

B: Well in that case I'll go there at about two pm.

既然如此，我就在两点再来吧。