Group (J K L M) - Spelling Practices

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(1) n. (管理员,管门人) door-keeper; porter; one who has the care of public building or suites of rooms
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(2) n. Syn. connection; joint; intersection; crossing(连接,汇合处) connection; joint; intersection; crossing
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(3) a. Syn. acute; incisive(敏锐的,敏捷的) acute; incisive; sharp ; express grief verbally 
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(4) n. (困难地做,太冗长地解释) effort expended on particular task; act of mother giving birth; time period during which mother gives birth
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(5) a. Syn. laughable; trifling(可笑的,滑稽的,不重要的) laughable; completely devoid of wisdom or good sense
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(6) n. (一块,肿块,形成块状) a small mass of matter of irregular shape; irregular or shapeless mass; small cube of sugar
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(7) n. (雨衣,防水胶布) waterproof long coat made of rubberized cloth
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(8) n. (大理石) hard crystalline metamorphic rock that takes a high polish
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(10) a. Syn. gloomy; sad(忧郁) gloomy; feeling of thoughtful sadness; affected by depression