Bobierrite
白磷镁石
🗣️ 情景例句
I'm a photographer.
我是一位摄影师。
I should have studied last night, but I was too tired.
我昨晚应该学习，但是我太累了。
If they are not brought to the surface soon they may lose their lives.
如果不把他们尽快救到地面上来，他们就有可能丧生。