noun下载🔗分享单体，链节 A repeat unit: a structural unit which through repetition forms a polymer.例子:"The long chain of the plastic toy was built from repeating ethylene mers, linked together to form a strong polymer. "这个塑料玩具的长链是由重复的乙烯单体连接而成，这些单体结合在一起形成了一种坚固的聚合物。chemistrymaterialsubstancecompoundstructure与AI对话词汇游戏阅读练习
noun下载🔗分享美人鱼，人鱼。 Merpeople例子:"The old sailor told us exciting stories about mer he claimed to have seen in the deep ocean. "那位老水手给我们讲了许多激动人心的故事，说他曾在深海里见过美人鱼。mythologyinhumanbeingsupernaturalstory与AI对话词汇游戏阅读练习
