橡皮圈

例句：

1. 1.The teacher used a rubber band to tiethe books together.
   老师用橡皮筋把书绑在一起。
2. 2. She put a rubber ringon her finger to keep it from slipping.
   她把一个橡皮圈套在手指上，以防它滑脱。
3. 3. Thechild was playing with his rubber band whenhe accidentally cut himself.
   孩子正在玩他的橡皮筋时，不小心割伤了自己。