4000 Duolingo Vocabulary List

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n. 专利 grant made by the government to creator the sole right; invention protected by grant

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a. 教育学的 of or relating to training or instruction

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n. 坚持不懈,持续 endurance; tenacity;  state or quality of being persistent; persistency

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n. 生理学 branch of the biological sciences dealing with the functioning of organisms

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n. 高原,高地 highland; upland; relatively flat highland

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n. 情况,状况,困境 condition or state, especially a bad state or condition

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n. 传粉媒介,传粉昆虫 an insect that carries pollen from one flower to another

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n. 文件夹,股份单 portable case to hold loose papers; materials in such case; office or post of minister of state; a group of investments

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n. 肖像画法 the activity of making portraits; a word picture of a person's appearance and character

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a. 积极的,正的,阳极的 involving advantage or good; greater than zero; very sure; confident