Do you want to do something this Sunday? John and I would like you to come over for a party.
你星期日要不要做什么事?约翰和我想请你过来参加宴会。
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。