Scientific problems
[计] 科学问题
🧩 词语组成解析
n. 问题；难题（problem的复数）
🗣️ 情景例句
Why don't you go to your room, Mom, and get some sleep.
为什么不到你的房间去？妈妈， 去睡一会儿。
I only regret that I have but one life to give for my country.
我抱憾的是，只有一次生命能献给祖国。
I'm afraid some people forgot to sweep the floor.
它不如平时干净，恐怕是一些人忘记扫地了。