A rubber band.

• 橡皮带

A rubber band.的用法和样例：

例句

1. It snapped back like a piece of elastic.
   它像一条橡皮带那样迅速弹回。
2. A rubber band can be elongated to several times of its normal length.
   橡皮带能拉长到平常长度的几倍。