Alarm check valve
[化] 报警单向阀
🧩 词语组成解析
check
[tʃɛk]
vt. 检查，核对;制止，抑制;在…上打勾;
vi. 核实，查核;中止;打勾;[象棋]将一军;
n. <美>支票;制止，抑制;检验，核对;
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
What's the spelling of your family name, sir?
您的姓怎么拼，先生？
If I have time tomorrow,I think I'll get a haircut.
如果我明天有时间，我认为我应该理发。
Oh, and please keep together. We don't want any of you to get lost!
噢，请大家靠拢一些。我们不想丢下任何一位同学！