Akermanite
镁黄长石
🗣️ 情景例句
I wonder who he is.
我不知道他究竟是谁？
Who is this?I don't recognize your voice.
你是谁？我听不出你的声音。
Yu Yan and Jim were neck and neck. They both passed on their sticks at the same time.
余延和吉姆跑得一样快。