I need time to get my wind back after that run.
我跑过之后需要时间喘口气。
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。