keep your hair on
01
落ち着いて, そんなに怒らないで
used to tell or remind someone not to get too upset or excited about something
idiom
informal
例
Hey, keep your hair on! There's no need to get so worked up about a small mistake.
落ち着いて、それほどひどくないよ。
落ち着いて, そんなに怒らないで