obscure

模糊的, 昏暗的, 难解的, 晦涩的, 偏僻的, 微贱的, 无名的

使变暗, 隐藏, 使变模糊, 使难解

make less visible or unclear; make obscure or unclear; reduce a vowel to a neutral one, such as a schwa; make undecipherable or imperceptible by obscuring or concealing