mouth /mauθ/ n.［c］(pl. mouths /mauðz/  嘴：Open your mouth wide and say "Ah". 把嘴张大说“啊”。Don't speak with your mouth full.当嘴里塞满东西时不要讲话。My mouth started watering when I smelled the food.闻到食物的香味，我开始流口水了。Shut your mouth!闭嘴！