Thucolite
古碳质岩
🗣️ 情景例句
We are lucky to have you, Marilyn.
拥有你是我们的幸运， Marilyn。
How long will it take for a letter to get to California?
你把信寄到加州要多长时间？
I think it's about five o'clock.
我想大约快五点了。