GbEng
他使劲儿把食物咽下去, 嘴唇都扭曲起来. His lips worked as he tried to swallow the food.
她舔湿了嘴唇. She moistened her lips with her tongue.
她把玻璃杯送到嘴边[用嘴唇触及玻璃杯]. She set the glass to her lips/her lips to the glass.
怪不得你们在舐着嘴唇，原来晚餐有肉。 No wonder you are licking your chops, there's pork for dinner.