时间总是过得很快，让人来不及记得发生过的事。
Time goes by so fast that people can't remember what happened.
有些人推迟立遗嘱的事，后来就来不及了。
我在想是否应该把这次考试不及格的事告诉父母。
I wonder if I should tell my parents that I failed in the exam.
我考试不及格是意料中的事，不过仍然让人很不痛快。
My failure in the exam was not unexpected, nevertheless, it was still disappointing.
我来不及知道是怎么一回事就掉进水中了。
我来不及知道是怎么一回事就掉进水中了。
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