rubber

n.

1. (合成)橡胶
   • Rubber will not let water through.
     水浸不透橡胶。
2. 橡皮
   • Leather, rubber and wire are flexible.
     皮革、橡皮和电线都是易弯曲的。
   • Pencil marks can be erased with a rubber.
     铅笔的痕迹可被橡皮擦掉。
3. 黑板擦
   • The teacher is cleaning the blackboard with a board rubber.
     老师正在用黑板擦擦黑板。
4. 橡胶套鞋
   • We wear rubbers on our feet when it rains.
     下雨时我们穿橡胶套鞋。