单词	chain of command
释义	chain of command noun phrase : a series of executive positions in order of authority a military chain of command Word History First Known Use 1825, in the meaning defined above
随便看	impugn impugnable impugnation impugned impugner impugners impugning impugnment impugnments impugns impuissance impuissances impuissant impulse impulse buying impulse charge impulse excitation launchpads launchways laund launder launder man Launder-Ometer launderability launderable

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