Picrofluite
氟鎂石
??? 情景例句
I don't think I have a mathemationcal brain.
我想我沒有數(shù)學頭腦。
Procrastination is the thief of time.
拖延即浪費時間。
It seems that the further cats fall, the less they are likely to injure themselves.
看起來，貓跌落的距離越長，它們就越不會傷害自己。