Spasur
宇宙监视系统(=space surveillance system )
🗣️ 情景例句
Try this. It's size eight.
试试这一件。尺码是八号。
I am working for a trading company as an assistant manager in the overseas distribution section.
我在一家贸易公司的海外行销部门做经理助理。
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，