plastic cap

• 塑料盖

plastic cap的用法和样例：

例句

1. With plastic caps or Roofing rainhat.
   顶端盖有塑料盖或防雨帽。
2. Remove the plastic cover from the needle on the syringe.
   把针头上的塑料盖取开，对准干扰素管子的橡皮塞中间，插入针头。