1、英 [ˈhɑːmfl] 美 [ˈhɑːrmfl]

2、Tears help to protect the eye from potentially harmful foreign bodies. 眼泪有助于保护眼睛去除可能有害的异物。

3、Water is not an effective shield against the suns more harmful rays. 水不能有效阻挡太阳中更有害的射线。

4、Fruit juices can be harmful to childrens teeth. 果汁可能损坏儿童的牙齿。