Level 1 - 2 - Spelling Practices

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(1) n. [稀释,淡化] process of making weaker or less concentrated; decrease in the equity position of a share of stock

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(2) n. [生态系统] the system formed by the interaction of a community of organisms with their physical environment

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(3) v. [危及,危害] threaten; jeopardize; do something that may damage it or destroy it

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(4) a. [无止境的] without end; having no end or conclusion; perpetual; interminable

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(5) n. [社会新闻,小道传闻] rumor; malicious report about other people; light informal conversation for social occasions

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(6) n. [花岗岩] a common, coarse-grained, light-colored, hard igneous rock consisting chiefly of quartz; unyielding endurance

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(7) n. [蚱蜢,蚂蚱] terrestrial plant-eating insect; young student in initial stages of training

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(8) a. [无害的] unlikely to harm or disturb anyone

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(9) n. [口琴] a small, rectangular musical instrument, played by blowing and sucking air through it

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(10) a. [敌对的,不友好的] unfriendly; showing the disposition of an enemy