2、：
n.橡胶；?橡皮；?
adj.橡胶制成的；
vt.涂橡胶于；
vi.扭转脖子看；?好奇地引颈而望；
3、例句
（1）in?post?offices,?virtually?every?document?that's?passed?across?the?counter?is? stamped?with?a?rubber?stamp.?
基本上所有交到邮局柜台的文件都会加盖橡皮图章。
（2）wear?rubber?gloves?while?chopping?chillies?as?they?can?irritatethe?skin.?
切辣椒时要戴橡胶手套，因为辣椒会刺激皮肤。
（3）the?government?bought?up?the?whole?domestic?rubber?crop.
政府买进国产的全部橡胶。
（4）if?you?cut?your?rubber?plant?back,?it?should?send?out?new?sideshoots.?