4周搞定2000+托福核心词
外套
coat
常考释义
But they're working on solving that problem, trying to come up with a way to coat plastics and other materials, durably and effectively.
不过，他们正在努力解决这个问题，尝试找出一种方法为塑料和其它材料做出持久、有效的涂层。
来源于：听力OFFICIAL44 L1n. 外套
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