water outlet的用法和样例：
例句
- There is a small drainage outlet for changing water under the vase, and we use the rubber buffer to block it.
花瓶下部有一个换水用的小排水口，并用橡胶塞塞住。 - To prevent water damage, the valve must be properly connected to a discharge line which terminates at an adequate drain.
为了防止水的破坏，这些阀门必须与排水管道连接，以便能够将水排到适当的排水口。
