Acaustophytolith
非可燃性植物岩
🗣️ 情景例句
It's a privilege to know you.
认识您是我的荣幸。
Virtue is a jewel of great price.
美德是无价之宝。
while our own compulsory school attendance became law in Germany in 1642,
而我们的义务教育成为法律在德国是在1642年，