Group (E F) - Spelling Practices

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(1) n. (舒适,悠闲,容易,不费力) satisfaction; pleasure; entertainment; freedom from care
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(2) n. (回声,发出回声,重复) sound reflected from an opposing surface and repeated to the ear; repetition of a sound
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(3) a. Syn. frugal; cheap; economical(经济的,经济学的,有利润的) pertaining to economy; frugal; cheap
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(4) n. Syn. skyscraper(宏伟的建筑物) building, especially one of imposing appearance or size; a structure that has a roof and walls
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(5) ad. (精细地,详尽地) with elaboration; in elaborate manner; with elaboration; with nice regard to exactness
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(6) n. (肘) hinge joint between the forearm and upper arm
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(7) n. (电工) one whose occupation is the installation, maintenance, repair, or operation of electric equipment and circuitry
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(8) n. Syn. vigor; power(用力,释放能量) exertion of force; capacity for work or vigorous activity; usable heat or power
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(9) a. (熟悉的,常见的,普通的) well known or easily recognized
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(10) v. (谋生,挡开,避开) ward off; make an effort to resist; keep off; prevent from entering