4000 Duolingo Vocabulary List

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a. 非人类的 not human; not belonging to or produced by or appropriate to human beings

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ad. 显著地,特别地 especially; in a notable manner; remarkably; particularly

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a. 核子的,核的,原子能的 of, relating to, or forming a nucleus of an atom; pertaining to, or using [___] weapons

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a. 无效的,无价值的,等于零的 invalid; void; nullified; having no legal force; invalid

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a. 众多的,很多的 many; various; amounting to a large indefinite number

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n. 义务,职责 act of binding oneself by a social, legal, or moral tie; written promise to repay a debt

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a. 奇异的,古怪的 not easily explained; beyond from the usual or expected; not divisible by two

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n. 征兆,预兆 any indication or action regarded as a foreshowing; phenomenon supposed to portend good or evil

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n. 开始,开头 beginning; start; origin; time at which something is supposed to begin

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a. 椭圆形 elliptic; rounded like an egg