abbr. 高级电视研究中心(Centre for Advanced Television Studies);计算机自动测试系统(Computer Automated Test System);通信和跟踪系统(Communications and Tracking System);综合分析试验系统(Comprehensive Analytical Test System)
🗣️ 情景例句
What does that mean when he goes,
他发出的声音代表什么意思
I asked him to paint it for me, but he wouldn't
我请他帮我油漆,但是他不肯。
'I'll tell you where to get off.' answered the conductor.