Emergency valve
[化] 事故阀
🧩 词语组成解析
valve
[vælv]
n. 阀;真空管;（管乐器的）活栓;（心脏的）瓣膜;
vt. 装阀于;以活门调节;
🗣️ 情景例句
Would you please account for these problems?
请你谈谈这些问题，好吗？
This metal is harder than that one.
这种金属比那种硬。
I must go to the greengrocer's.We haven't got many tomatoes,but we've got a lot of potatoes.
我还得到蔬菜水果店去一下。我们番茄不多了，但土豆还有不少。