Monticellite
鈣鎂橄欖石
??? 情景例句
Don't worry, be happy.
別擔心，開心點。
When am I supposed to check in?
我應該在什么時候到機場辦理手續(xù)呢？
Five days ago, the policeman told him, the bicycle was picked up in a small village four hundred miles away.
那位警察對他說，那輛自行車是5天前在400英里外的一個小村里發(fā)現(xiàn)的，