Group (A) - Spelling Practices

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(1) a. (摩擦的,粗糙的,研磨剂) rubbing away; tending to grind down
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(2) v. (陪伴,伴随,伴奏) travel with; be associated with
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(3) n. Syn. modification; adjustment(改编,改写,适应环境) modification; alteration or adjustment in structure or habits
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(4) n. (空气动力学) study of how objects move through the air or water
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(5) n. (集合,群体) several things grouped together or considered as a whole
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(6) a. Syn. pleasing; acceptable(使人愉快的,合意的) ready to consent or submit; acceptable
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(7) n. (飞行器,飞机,飞艇) vehicle that can fly, such as an airplane, helicopter, balloon
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(8) a. Syn. solitary; by oneself(单独的) solitary; by oneself
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(9) n. Syn. environment; atmosphere(环境) particular environment or surrounding influence; atmosphere of environment
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(10) n. (赔偿,补偿) compensation for a loss or injury; recompense; reparation