glib
/glɪb; ɡlɪb/ adj
(-bber, -bbest) (derog 贬) speaking or spoken fluently and without hesitation, but not sincerely or trustworthily 能说会道的; 油嘴滑舌的
a glib talker, salesman, etc 油嘴滑舌的谈话者、 推销员等
a glib remark, speech, etc 八面锋的言语、 演说等
glib arguments, excuses, etc 诡辩的论据、 藉口等
have a glib tongue 有巧舌如簧的嘴.