Bisphenoid
(正交晶的或四方晶的)双榍
🗣️ 情景例句
I never slept.
我总睡不着。
This is a highly controversial subject.
这是一个颇有争议的题目。
You see, we've been in China for over two years now, so we are travelling back to England soon for a holiday.
您知道，我们到中国已有两年多时间了，所以不久后我们就要回英国度假了。