单词	envelope
释义	envelopeenvelope /ˈɛnvəˌloʊp, ˈɑn-/ ●●● S2 noun [countable] Etymology ETYMOLOGYenvelope Origin: 1700-1800 French enveloppe, from Old French voloper to wrap Collocations COLLOCATIONS► sealed the envelope  She sealed the envelope (=stuck it shut) and put a stamp on it. 1 a thin paper cover in which you put a letter:  I tore open the envelope. She sealed the envelope (=stuck it shut) and put a stamp on it.2a layer of something that surrounds something else: envelope of the envelope of gases that surround Earth3push the envelope to try to do more than what people think is possible, sensible, or right:  The CEO is known for pushing the envelope and getting results. [Origin: 1700–1800 French enveloppe, from Old French voloper to wrap]
随便看	measured measureless measurement measure of central tendency measure of spread measures of center measures of variation measuring cup measuring spoon measuring tape meat meat-and-potatoes meatball meat grinder meatless meatloaf meat market meat-packer meat-packing meaty Mecca mecca mechanic mechanical mechanical advantage

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