Fluorochloromethane
氟氯甲烷
🗣️ 情景例句
They're getting divorced.
他们快要离婚了。
How much is a call to the United states?
打一个电话到美国去需要多少钱？
The Hubble telescope was launched into space by NASA on April 20,1990 at a cost of over a billion dollars.
哈勃望远镜于1990年4月20日由国家航空航天局发射升空，耗资10多亿美元。