Osteogen
成骨质
🗣️ 情景例句
Besides, we are not going to be here Saturday.
另外， 我们星期六将不在这儿了。
There are four quarters in every dollar.
每美元有四个二角五分。
Are you doing the football pools, Brain?
布赖恩，你正在下足球赛的赌注吗？