Eustachitis
咽鼓管炎
🗣️ 情景例句
I take after my mother's family.
我像我母亲家的人。
Who are you?
你是谁？
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。