释义
n. 一生,终身
例句
1. I doubt if there will be a female president in this country in my lifetime. 我怀疑在我有生之年这个国家会不会出现一位女总统。 2. The government is unlikely to get the bill through within (the lifetime of) this Parliament. 政府不大可能在本届国会（会期）内通过该项法案.
