〈贬〉 (人)能说会道的,油嘴滑舌的;(话语)肤浅的,不诚恳的
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she was careful not to let the answer sound too glib .她留意尽量不让回答听起来油腔滑调的。
"late 16th cent. (also in the sense ‘smooth, unimpeded’): ultimately of Germanic origin; related to Dutch ‘slippery' and German