1. Babies are apt to put objects into their mouths. 婴儿爱把东西往嘴里塞。
2. The smells from the kitchen made our mouths water. 厨房里的香味馋得我们直流口水。
3. He had to feed his family on the equivalent of seven hundred dollars a month and, with five mouths to feed, he found this very hard. 他每月不得不用相当于700美元的钱来养家,5张嘴等着吃饭,他觉得很困难。