光化作用 guāng huà zuò yòng 🔊 photochemical effect + Keep this word Meanings guāng huà zuò yòng photochemical effectphotosynthesisphotolysis Its characters 光guānglight; ray (CL:道[dao4])HSK 4化huàto make intoHSK 5作zuòto do; to engage in用yòngto use; to make use of; to employHSK 3