韬 ㄊㄠ tāo 光 ㄍㄨㄤ guāng 养 ㄧㄤ ˇ yǎng 晦 ㄏㄨㄟ ˋ huì 韜 ㄊㄠ tāo 光 ㄍㄨㄤ guāng 養 ㄧㄤ ˇ yǎng 晦 ㄏㄨㄟ ˋ huì to conceal one's strengths and bide one's time (idiom) to hide one's light under a bushel