环保科学 Traditional 環保科學 huán bǎo kē xué 🔊 environmental science + Keep this word Meanings huán bǎo kē xué 環保科學 environmental science Its characters 环huánringHSK 6保bǎoto defend; to protect; to keepHSK 5科kēbranch of studyHSK 6学xuéto learnHSK 1