Central system
[计] 中央系统
🧩 词语组成解析
🗣️ 情景例句
You probably heard about it. We have private teachers in our holiday.
或许你已经听说过。我们交大的学生在假期间做家教。
What's the longest river in the United States?
在美国最长的河是什么？
He has asked to be introduced to the pianist.
他要求会见这位钢琴家。