common sense

US /ˈkɑː.mən ˌsens/
UK /ˈkɑː.mən ˌsens/
"common sense" picture
1.

常識, 判斷力

good sense and sound judgment in practical matters.

:
Use your common sense to solve the problem.
用你的常識來解決問題。
It's just common sense to wear a helmet when cycling.
騎自行車戴頭盔是常識