Osteolith
土磷灰石
🗣️ 情景例句
I'd like to introduce you to some of my friends.
我想介绍你认识一些我的朋友。
You're way behind schedule.
你比预定的落后了。
You'll find details of TV programs on page seven.
你能在第七版找到电视节目的详细预告。