Cisi
abbr. Centre for Inventions and Scientific Information 发明与科技情报中心
🗣️ 情景例句
I'm leaving for Beijing on a four-day tour.
我马上要去北京旅游4天。
I'm too old.
我太老。
'Could I have those two tickets please?' I asked.
“我可以买那两张票吗？”我问。