slipmat

例句：

1. 1.The old man slipped and fell on the ice.
   老人在冰上滑倒了。
2. 2. She tripped over her own shoelaces while walking in the park.
   她在公园散步时绊倒了自己的鞋带。
3. 3. The children were playing happily when suddenly one of them slipped and fell.
   孩子们玩得很开心，突然其中一个孩子滑倒了。