Catotropic
头朝下的
🗣️ 情景例句
Blackjack.
二十一点！
I haven't got time right now.
我现在没有时间。
Knowledge began to increase as soon as the thoughts of one individual could be communicated to another by means of speech.
人一旦能用语言同别人交流思想，知识的积累便开始了。