Capnometer
二氧化碳检测计
🗣️ 情景例句
What's that?
什么问题？
How can I get in touch with you?
我怎样能跟你联络上？
One had winter we watched the river creep up the lower meadows.
有一年冬天，天气不好，我们眼看着河水浸没了地势较低的草场。