4周搞定2000+托福核心词
mammal = mamm(乳房) + al(人，物) = 哺乳动物
appraisal = ap(加强) + prais(价值) + al(表名词) = 价值→估价；鉴定
approval = ap(加强) + prov(测试) + al(表名词) = 加强测试以证明可行→批准
antiquaian = antique(古代的) + ian(某种人) = 古文物研究者
civilian = civ(公民) + il(...的) + ian(某种人) = n.平民
哺乳动物
mammalian
常考释义
In the time when the dinosaurs dominated the daytime economy, our mammalian ancestors probably only managed to survive at all because they found ways of scraping a living at night.
在恐龙统治地球白天的时代，我们的哺乳动物祖先只能想方设法在夜间谋生，求得一线生机。
来源于：剑雅7-Test1n. 哺乳类
Indeed, he takes this evolutionary process seriously: he is fond of pointing out to his audiences that they have both “mammalian” and “reptilian” brains that can be employed at different moments.
实际上，罗闻全对待这种进化过程的态度是认真的：他喜欢向听众指出，他们都拥有可以在不同时刻使用的“哺乳动物”和“爬虫类”大脑。
adj. 哺乳类动物的
Ferrets are another mammalian species known to be susceptible to infection.
雪貂是另一种已知易受感染的哺乳类动物物种。
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