Hydroxylapatite
(=hydroxyapatite)羟磷灰石
🗣️ 情景例句
Eight o'clock is fine.
八点钟可以。
He that returns good for evil obtains the victory.
以德报怨的人得到胜利。
Triple gun-decks mounted sixty-four bronze cannon.
三层的火炮甲板上装着64门青铜加农炮，