Methacrylates
(methacrylate 的复数) n. 甲基丙烯酸酯；异丁烯酸甲酯
🗣️ 情景例句
First, we need to more public relations activities to promote understanding.
首先，我们应该更多地做公关活动以促进了解。
My father used to smoke, but now he doesn't.
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Do you usually buy in large quantities?
你们的订购量通常都很大吗？