after可以引导什么从句

I could come next week, or the week after.

我可能下周来，或者再下一周。

The first 24 hours after the operation are the most critical.

病人手术后头24小时是最危险的。

An accurate diagnosis was made after a series of tests.

准确的诊断是在一系列的`检查后作出的。

The child disappeared from his home some time after four.

这孩子四点多的时候就离家不见了。

The traffic took a long time to clear after the accident.

事故过去后很长时间交通才恢复畅通。