介词短语
中文翻译：在某人的时代之前
同义词：
['ahead of time', 'beforehand', 'in advance例句：1. She decided to move out before her parents realized their mistake.（她决定在她父母意识到他们的错误之前搬出去。）']
例句：
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1. She decided to move out before her parents realized their mistake.
她决定在她父母意识到他们的错误之前搬出去。
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2.We should finish the project before our deadline.
我们应该在我们截止日期之前完成这个项目。
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3. He planned to visit his grandmother before he left for college.
他计划在他离开上大学之前去看望他的祖母。