Permineralization
完全矿化
🗣️ 情景例句
How was your school-board meeting last night?
昨天晚上你们的联合校董会会议开得怎么样？
They are so busy these days, that they don't even have time for their friends.
他们最近忙得没法和朋友见面。
There are about 50 million sheep in New Zealand, about 14 sheep for every New Zealander!
在新西兰大约有5000万只羊，每个新西兰人拥有14只羊左右！