Chronolith
[地质]岩石年代单位
🗣️ 情景例句
Can you manage English conversation?
你能用英语谈话吗？
Snort! I didn't do anything wrong!
哼哼，我没做错什么事啊。
Busmen have decided to go on strike next week.
公共汽车司机决定下星期罢工。