Giobertite
菱镁矿
🗣️ 情景例句
If you're under twenty-one years of age ...
如果你还不到二十一岁……
Adversity successfully overcome is the highest glory.
成功地克服困难是最大的光荣。
She is standing in the front of the bus.
她站在公共汽车的前部。