Electrochromism
电变色
🗣️ 情景例句
He's a lucky boy.
他是个幸运的孩子。
I must know your opinion.Do you agree with me?
我必须知道你的意见.你同意我吗？
It was raining heavily and they found that a stream had formed in the field.
雨下得很大，他们发现地上已经形成了一条小溪。