backdooradj.
英 ,bæk'dɔː | 美 'bæk,dor
中文adj. 秘密的\nn. 后门
秘密的
n. 后门
词根词源
backdoor (adj.)also back-door, "devious, shady, illegal," 1640s. The notion is of business done out of public view. The noun back door in the literal sense is from 1520s, from back (adj.) + door. The association with sodomy is at least from 19c.; compare also back-door man "a married woman\\'s lover," black slang, early 20c.
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