rubber

• Rubber is an elastic material .
  橡胶是一种弹性材料。
• The rubbers grip each other .
  橡皮互相紧紧地卡住。
• The new rubber ball springs high .
  新皮球跳得高。
• Really, he owed his life to the rubber buoy .
  确实，多亏了那只橡皮救生圈，他才保住性命。
• Hard rubber and fur are commonly used in demonstrations .
  在演示中，常用硬橡胶棒和毛皮。
• He presses the rubber stopper firmly down on the vent .
  他使橡胶塞牢固地塞进盖上的排气孔。
• He scraped the bits of boiling rubber on to a plate .
  他把这些滚热的橡胶碎片刮进一个盘子里。
• The inner surface of the hoop has rubber grips or steel cleats .
  环的内侧有橡皮抓子或钢楔子。
• The stair treads were covered with rubber to prevent slipping .
  楼梯踏板上铺了橡皮，以防滑跌。
• She held the rubber tight to her face and breathed fast .
  她抓住橡皮紧紧地罩在脸上，急急呼吸。