Pay lip service:
耍嘴皮
例句：
Everyone hates people who pay only lip service.
沒人喜歡光耍嘴皮子的人。
Smart mouth:
耍嘴皮
例句：
Don't be a smart mouth with me!
別跟我耍嘴皮子。
Mouth off:
高談闊論，隨便發言
例句：
If he hadn't shot his mouth off, things couldn't have been so awkward.
要不是他多嘴，事情也不至于搞僵。
（素材來自網絡，如有侵權請聯系刪除）
