苦心 kǔxīn HSK7 painstaking effort Definitions Defs Origin Strokes Stroke Words Sentences Sents kǔxīn painstaking effort · painstakingly 苦 kǔ adjectiveadverb painstakingly with great effort, persistence, or patience心 xīn noun mind thought; intellect; the organ of thinkingkǔxīn troubled heart 苦 kǔ adjective miserable hard; painful; experiencing or causing physical or mental distress心 xīn noun feelings mood; emotion; state of mind
