lighten up

US /ˈlaɪ.tən ʌp/
UK /ˈlaɪ.tən ʌp/
"lighten up" picture
1.

放鬆, 輕鬆點

to become less serious or more cheerful

:
Oh, lighten up! It was just a joke.
哦,放鬆點!那只是個玩笑。
You need to lighten up and enjoy life more.
你需要放鬆點,多享受生活。