Tetrabase
[医] 对对四甲基二氨基二苯甲烷
🗣️ 情景例句
They come back here for lunch,
他们回到这儿来吃午餐，
To have money is a fear, not to have it a grief.
有钱使人担心，没钱使人伤心。
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。