Sampleite
氯磷钠铜矿
🗣️ 情景例句
He's ready for you, Mr. Stewart.
他可以见你啦， Stewart先生。
He that is master must serve.
主人必须会服务。
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。