Shutoff valve
[化] 切斷閥; 斷流閥; 截止閥; 閘閥
?? 詞語組成解析
n. 關閉器(如閥、開關), 遮斷, 停止
valve
[v?lv]
n. 閥;真空管;（管樂器的）活栓;（心臟的）瓣膜;
vt. 裝閥于;以活門調節;
??? 情景例句
My wife is a writer. She writes on her computer. She has published ten novels already.
我的太太是個作家。她在計算機上寫作。她已發表了10部長篇小說。
Why didn't you try again?
為什么你不再試一次？
Where?
在哪呢？