Difference structure
[计] 差分结构
🧩 词语组成解析
🗣️ 情景例句
Unless in uniform, he doesn't look like a policeman.
除非穿上制服，要不他看起来不像警察。
It was a real pleasure for me to do it.
我很乐意这样做。
They're blue.
是蓝色的。