tempest in a teapot

US /ˈtem.pɪst ɪn ə ˈtiː.pɑːt/
UK /ˈtem.pɪst ɪn ə ˈtiː.pɑːt/
"tempest in a teapot" picture
1.

小题大做, 大惊小怪

a great commotion or excitement over a trivial matter

:
The argument over the seating chart was a real tempest in a teapot.
关于座位表的争论真是小题大做
Don't worry about their little disagreement; it's just a tempest in a teapot.
别担心他们的小分歧;那只是小题大做