Circular development
[化] 环形展开; 环形展开法
🧩 词语组成解析
🗣️ 情景例句
and sometimes just stubborn.
有时候甚至近乎顽固。
I wasn't serious, I meant it as a joke.
我并非有意，我只是开个玩笑而已。
As it is, they have been drilling for sixteen hours and they still have a long way to go.
实际情况是，他们已连续钻了16个小时了，但离钻透还早着呢。