Quantitative composition
[化] (试样的)定量组成
🧩 词语组成解析
🗣️ 情景例句
A grandfather clock would look great in the den.
休息室里放一座落地钟会很漂亮的。
What will you do then?
你那时将做什么？
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。