Correct

白搭

/ báidā / 
Strokes

Definition

no use/no good

Example

As a Verb

be of no use/good/avail; be in vain; get nothing

1
Nǐ
你
shuō
说
yě
也
báidā
白搭
  
,
tā
他
bùhuì
不会
tóngyì
同意
de
的
  
。

It's no use talking to him; he won't give his consent.

2
Yīqiè
一切
xīnkǔ
辛苦
dōu
都
báidā
白搭
le
了
  
。

All the hard work was of no avail.