介词短语
中文翻译：提前
同义词：
['before', 'ahead of例句：1. He arrived in advance of the deadline.（他提前到达了截止日期。）2. The project is scheduled to start before the end of the year.（该项目计划在年底前开始。）3. She was ahead of everyone in her class in mathematics.（她在班上的数学成绩比任何人都好。）']
例句：
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1. He arrived in advance of the deadline.
他提前到达了截止日期。
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2. The project is scheduled to start before the end of the year.
该项目计划在年底前开始。
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3. She was ahead of everyone in her class in mathematics.
她在班上的数学成绩比任何人都好。