Group (A) - Spelling Practices

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(1) v. Syn. recognize; admit(认可,承认) declare to be true or admit; express obligation, thanks
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(2) v. Syn. obtain; gain(获取) gain through experience or effort; gain possession of; locate with tracking system
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(3) n. (成年的,已成人的,成年人) one who has attained maturity or legal age; fully grown
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(4) n. Syn. risk; venture(冒险经历) something happens without design; chance; hazard; risk; danger
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(5) n. Syn. poverty; misfortune(贫困,不幸) state of misfortune, hardship, or affliction; misfortune
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(6) n. (空气动力学) study of how objects move through the air or water
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(7) n. Syn. renovation; change(变更,改造) passage from one form or state to another; change
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(8) a. Syn. substitute(交替的,轮流的) happening or following in turns; succeeding each other continuously; substitute
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(9) v. Syn. disturb; irritate(使恼怒,打扰) disturb, especially by minor irritations; irritate
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(10) n. Syn. relic(古迹,古物) ancient times, especially the times preceding the Middle Ages; extreme oldness