adverb
Describes doing something while actually crying or with tears in one's eyes. Often used with verbs of speaking, apologizing, or leaving.
彼女は泣く泣く別れを告げた。
She tearfully said goodbye.
子供は泣く泣く謝った。
The child apologized in tears.
adverb
reluctantly; unwillingly; with a heavy heart
Expresses doing something with great reluctance or emotional pain, as if one were crying inside. The action is done despite strong personal objection or sadness.
彼は泣く泣くその条件を受け入れた。
He reluctantly accepted the conditions.
泣く泣く大切な本を手放した。
I unwillingly parted with my precious book.