1. Food should be put into the freezer in the summer.
    夏天, 食物应放在冰箱里。

2. From time to time they slapped at the mosquitoes, or put their heads into the smoke to get rid of the pests.
    他们不时还拍打着蚊子，或是把他们的头放到烟幕中来驱除害虫。

3. For many years he put up with this nuisance, but he planned to get even.
    这么多年来，他一直忍着这种麻烦，但他决定报复。