苦苦 kǔ kǔ 🔊 strenuously + Review this word Meanings kǔ kǔ strenuouslypersistentlyhardpainful Its characters 苦kǔbitterHSK 4 Words with 苦苦 辛辛苦苦 xīn xīn kǔ kǔ painstakingly 苦苦哀求 kǔ kǔ āi qiú to entreat piteously