名词
中文翻译：年龄
同义词：
['duration', 'time', 'period']
例句：
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1. The old man has lived in this village for over 50 years.
这位老人在这个村庄住了超过50年。
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2. Time flies when you are having fun.
当你玩得开心时，时间过得飞快。
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3. The children are growing up quickly;they will soon be teenagers.
孩子们正在快速成长，很快他们就会是青少年了。