Fluorocummingtonite
氟镁铁闪石
🗣️ 情景例句
What about your arms? Lift your arms up like this.
你胳膊怎么样?手抬起来， 像这样。
Pat began to feel unhappy about what he had done.
帕特开始对自己所做的事感到悲伤。
How can you say that?
你怎么可以这样说？