murk

1. N-SING The murk is darkness, dark water, or thick mist that is very difficult to see through. 黑暗; 深水; 浓雾[usu 'the' N]

All of a sudden a tall old man in a black cloak loomed out of the murk. 一个身披黑色斗篷的高个子老头儿突然从暗处闪了出来。

2. V to murder (a person) 谋杀(某人)