Osteogen
成骨质
🗣️ 情景例句
No, I haven't. Would you show me where that is?
不，没去过。你可以告诉我去哪里吗？
Better have something we can get our hands on rather than just spend all our time talking.
有些实际材料拿到手总比坐着闲聊强。
Yes, he has.He sold it last week.
是的，卖掉了。他上星期卖掉的。