water bosh

• 水封

water bosh的用法和样例：

例句

1. Air and water are needful for living things.
   空气和水是生物不可缺少的东西。
2. The water seal assembly and other internal parts shall clear the waterway as intended.
   水封的汇集和其他内部部件应该象预期的一样清除水沟的杂质。