Background system
[计] 后台系统
🧩 词语组成解析
🗣️ 情景例句
I don't see why you are kicking up such a fuss.
我不明白你为什么要这样小题大作。
It is easy to be wise after the event.
当事后诸葛亮容易。
When they were very young, Mr. Green sometimes dressed up in a red coat. But he doesn't do that now.
在他们很小时，有时候格林先生穿上一件红色的外套。但他现在不那么做了。