stopcock
🇺🇸
/ˈstɑːpkɑːk/
🇬🇧
/ˈstɒpkɒk/
A valve that can be turned to control the flow of water or gas in a pipe.
I had to turn the stopcock to stop the water from leaking.
我不得不轉動水阀以防止水漏。