lubricadj.
'lu:brik,-kəl
中文adj. 光滑的（等于lubricous）
词根词源
lubric (adj.)"smooth, slippery," late 15c., also "lascivious, wanton," from Middle French lubrique (15c.) or directly from Latin lubricus "slippery" (see lubricant (adj.)). Related: Lubrical.
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