1·One of the kids fell into the river.
小孩中有一个掉进了河里。
—— 《牛津词典》
2·The bus overturned and fell into a ravine.
这辆公共汽车翻了车，掉进了一处深谷。
—— 《柯林斯英汉双解大词典》
3·We heard the splash when she fell into the pool.
她掉进游泳池时我们听见扑通的一声。
—— 《牛津词典》
4·I stepped carefully into the swimming pool but when the water came up to my stomach, I lost my balance again and fell into the water.
我小心翼翼地走进游泳池，但当水涨到我的肚子时，我再次失去平衡，掉进了水里。
5·A pig fell into a big pit.
一头猪掉进了一个大坑。