动词短语
中文翻译：以
同义词：
['exchange', 'trade', 'barter例句：1. We can trade in our old car for a new one.（我们可以用旧车换新车。）']
例句：
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1. We can trade in our old car for a new one.
我们可以用旧车换新车。
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2. The company trades in its products for cash.
公司用产品换取现金。
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3. They traded in their old house for a new one.
他们用旧房子换了一所新房子。