Caranalyzer
定碳仪
🗣️ 情景例句
I called my parents from the airport.
我从机场打电话给我父母。
Where can I get my baggage?
我到哪里去拿我的行李呢？
Many firms, for instance, have great difficulty in obtaining technical or scientific books from libraries
比如，很多公司向图书馆借阅科技书籍时感到很困难，