Group (E) - Spelling Practices

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(1) n. (漩涡) swirling current of water, air; flow in circular current
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(2) a. Syn. effective(生效的,能干的,有效率的) effective; acting directly to produce an effect; exhibiting a high ratio of output to input
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(3) n. (电工) one whose occupation is the installation, maintenance, repair, or operation of electric equipment and circuitry
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(4) v. Syn. commence(开始旅程,开始,登机,上船,上车) commence; go on board a boat or airplane; begin a journey
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(5) a. Syn. active; brisk; vigorous(精力充沛的,积极的) active; brisk; vigorous
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(6) v. Syn. reserve(吸引,雇佣,答应,订婚) obtain for services of; arrange for the use of; pledge or promise, especially to marry
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(7) v. Syn. monopolize; absorb(独占) occupy exclusively; absorb; acquire most or all of; write or print the final draft of; make large or larger
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(8) v. Syn. increase; improve(增加,改进) make better or more attractive; increase; improve
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(9) a. Syn. mistaken; wrong(错误) containing or derived from error; mistaken
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(10) a. Syn. necessary; critical; vital; indispensable; fundamental(本质的,根本的) necessary; critical; vital; constituting or being part of the essence of something