Percivalite
钠铝辉石
🗣️ 情景例句
All right, everybody.
各位， 你们好。
He was anxious about his son's safety.
他担心他儿子的安全。
A week before, he had completed a successful overland flight during which he covered twenty-six miles.
一周以前，他曾成功地进行了一次26英里的陆上飞行。