HSK V7-9
Correct

甘心

/ gānxīn / 
Strokes

Definition

to be willing to/to resign oneself to

Example

As a Verb
be willing; be ready
1
Gānxīn
甘心
wéi
为
tārén
他人
xiàoláo
效劳

be willing to offer one's service

As a Verb
be content with; resign/reconcile oneself to
2
Tā
他
cóngbù
从不
gānxīn
甘心
shībài
失败
  
。

He never resigns/reconciles himself to failure.