名词
中文翻译：背心
同义词：
['jacket', 'sweater', 'vest']
例句：
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1. He wore a gilet over his shirt to keep warm.
他穿着一件背心来保暖。
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2. She put on her gilet and went for a walk in the park.
她穿上她的夹克衫去公园散步。
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3. The gilet is made of cotton and has a drawstring closure.
这件夹克是用棉制成的，有拉链闭合。