lubricousadj.
'lu:brikəs
中文adj. 光滑的；润滑的；不稳定的
词根词源
lubricous (adj.)1530s, "lascivious," from Latin lubricus "slippery, smooth," from lubricus "slippery" (see lubricant (adj.)). Literal meaning "slippery, oily" is from 1650s in English; figurative sense of "shifty, elusive" is from 1640s. Also lubricious (1580s).
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