Anthraconite
黑方解石, 沥青灰岩
🗣️ 情景例句
Please give my best regards to your sister.
请向你妹妹转达我最诚挚的问候。
So I appreciate your making time in your schedules to attend today.
因此非常感谢你们今天能够抽出时间来参加这次会议。
The ice is hard enough to skate on.
冰已经厚得可以划冰了。