苦苦

Traditional form:

苦苦

Pinyin (reading):

kǔkǔ

Definitions:

• strenuously
• persistently
• hard
• painful

Characters:

• 苦 - bitter; hardship, suffering
• 苦 - bitter; hardship, suffering

Traditional characters:

• 苦 - bitter; hardship, suffering
• 苦 - bitter; hardship, suffering