薄透镜 Traditional 薄透鏡 báo tòu jìng 🔊 thin lens (optics) + Keep this word Meanings báo tòu jìng 薄透鏡 thin lens (optics) Its characters 薄báothinHSK 5透tòuto penetrate; to seep throughHSK 6镜jìngmirror