Don't routinely cover toothbrushes or store them in closed containers, which can encourage the growth of bacteria.
通常不要将牙刷覆盖住，或是将它保存在密闭的盒子中，那样容易滋生细菌。
It said people should cover their mouths when outside and keep doors and Windows closed.
还说人们外出时应该遮好嘴巴并且关好门窗。
Hattie had seen and closed the book's cover with the tip of her finger, as if she could hardly stand to touch it.
海蒂看见了，拈起指尖合上了书，就好像碰它一下她都受不了。
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