Unconstant
a. 易变的, 无常的
🗣️ 情景例句
Why, that's wonderful!
哎呀， 这太美好了！
Thank you very much. Here's $10.00. Give me $1.00 back, please.
太谢谢你了。这是10美元，找我1美元就行了。
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。