Correct

小题大做

/ xiǎo tí dà zuò / 
Strokes

Definition

to make a big fuss over a minor issue (idiom)

Example

Definition

make a fuss over/about a trifle; make a mountain out of a molehill; make a drama out of a trifle; make an issue (out) of sth

1
Tā
她
jiù
就
chídào
迟到
le
了
3
3
fēnzhōng
分钟
ma
嘛
  
,
méi
没
bìyào
必要
xiǎotídàzuò
小题大做
  
。

She was only three minutes late! There is no need to make a mountain out of a molehill.

2
Méiyǒu
没有
dédào
得到
jìnshēng
晋升
  
,
tā
她
pō
颇
gǎn
感
bùyuè
不悦
  
,
dàn
但
tā
她
bù
不
xiǎng
想
xiǎotídàzuò
小题大做
  
。

She was unhappy about not being promoted, but she didn't want to make an issue of it.