形容词
中文翻译：可交换的
同义词：
['exchangeable', 'interchangeable']
例句：
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1.The coins are exchangeable for each other's currency.
这些硬币可以互相兑换。
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2. The materials are exchangeable for each other's goods.
这些材料可以互相交换对方的货物。
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3. The students are exchangeable for each other's help.
学生们可以互相帮助。