Valves
n. 阀门；真空管；瓣膜（valve的复数）
🗣️ 情景例句
That's another surprise.
这是另一个惊喜。
No, thanks. I'm in a hurry. How much is it?
不用了，谢谢。我还有急事。多少钱？
a flight attendant told us to keep calm and to get off the plane quietly as soon as it had touched down.
一位空中乘务员告诉我们要保持镇静，待飞机一着陆，就马上不声不响地离开飞机。