Thucolite
古碳质岩
🗣️ 情景例句
I think I'm falling asleep.
我想我要睡着了。
Did you use to go fishing with friends?
过去你常和朋友钓鱼吗？
How many spiders are engaged in this work no our behalf?
有多少蜘蛛在为我们效力呢？