Telesmoke
(观测)烟气(浓度)望远镜
🗣️ 情景例句
Band Six.
六级。
I guess so.
这样也好。
Then, instead of having someone answering the phone all day, people can ring up the railway station and listen to a tape recording of the information.
然后，人们可以打电话到火车站，从录音电话中获取信息，而不要安排一个专人整天接电话。