Correct
苦苦
/ kǔkǔ /
Strokes
Definition
strenuously/persistently/hard/painful
Example
As an Adverb
strenuously; hard; persistently
1
Kǔkǔ
苦苦
zhuīqiú
追求
pursue persistently; try hard to get
2
Kǔkǔ
苦苦
sīsuǒ
思索
think/ponder hard; rack one's brains
3
Kǔkǔ
苦苦
āiqiú
哀求
entreat piteously; implore urgently