use your head
US /juːz jʊər hɛd/
UK /juːz jʊər hɛd/
1.
頭を使う, よく考える
to think carefully and intelligently about something, especially to solve a problem
:
•
Come on, use your head! There must be a simpler way to do this.
おい、頭を使え！これにはもっと簡単な方法があるはずだ。
•
If you would just use your head, you'd realize the answer is obvious.
もし頭を使えば、答えが明白だとわかるだろうに。