water aspirator

• 吸水器

water aspirator的用法和样例：

例句

1. A small cistern was dug beneath this opening to hold rain water.
   在下面找到一个小贮水器接雨水。
2. The light-control urinal flushing machine can save a lot of water.
   光控的便池冲水器能够节约很多水。