理 On the HSK 6 vocabulary list, at CEFR level C2. lǐ ㄌㄧˇ texture grain (of wood) inner essence intrinsic order reason logic truth science natural science (esp. physics) to manage to pay attention to to run (affairs) to handle to put in order to tidy up Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0 国际中文教育中文水平等级标准, 中华人民共和国教育部, MIT