苦苦 kǔkǔ persistently Definitions Defs Origin Strokes Stroke Words Sentences Sents 辛辛苦苦 xīnxīnkǔkǔ painstakingly with great effort, toil, or hardship苦苦哀求 kǔkǔ'āiqiú implore to entreat piteously or beg persistently
