Group (2) - Spelling Practices

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(1) n. Syn. card(一副(纸牌)) a pack of 52 cards; any of various floor-like platforms built into a vessel 
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(2) n. (派生的事物,派生词,副产品) by-product; something derived
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(3) n. (营养学家) a specialist in the study of nutrition
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(4) a. Syn. basic; fundamental(基本的,初级的) basic; fundamental
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(5) a. Syn. vacant(空的,空洞的,空虚的) containing nothing; not holding or having anything within; void of contents or appropriate contents
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(6) n. Syn. variable; element; component(因素,变量) anything that contributes causally to a result; element; variable
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(7) n. Syn. notion; imagine; whim(爱好,奇特,想象) capricious notion; something many people believe that is false
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(8) v. Syn. intrigue; enthrall; captivate(使着迷,使神魂颠倒) cause to be interested or curious; captivate
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(9) n. Syn. holiday(节日) a day or period of time for feasting and celebration