HSK 6
Correct

锦上添花

/ jǐn shàng tiān huā / 
Strokes

Definition

lit. on brocade, add flowers (idiom); to decorate sth already perfect/gilding the lily

Example

Definition

add flowers to embroidery―embellish what is already beautiful; add brilliance to one's present splendour

1
Tāmen
他们
de
的
yǎnchū
演出
shǐ
使
wǎnhuì
晚会
jǐnshàngtiānhuā
锦上添花
  
。

Their performance provided the crowning touch to the evening's entertainments.