4000 Duolingo Vocabulary List

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n. (自外国移入)移民 one who comes to a country where they were not born in order to settle there; non-native

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v. 临时准备,即席创作,现编 compose, perform, or do something with little or no preparation

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n. 刺激,驱动 something, such as the fear of punishment or the expectation of reward

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v. 招致 bring upon oneself; become liable to; acquire or come into

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v. 通知,告诉,(向警方)告发 impart information to; make aware of something; be a pervasive presence in; animate

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v. 检查,审查 look over; examine carefully and critically, especially for flaws

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a. 不可战胜的,不能克服的 impossible to overcome; unbeatable

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a. 一体的,完整的 essential or necessary for completeness; entire

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a. 内在的 inside; interior;  located within the limits or surface

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a. 星际的 between or among stars