Last night's killings cast a dark shadow over the peace talks.昨晚的枪杀案为和谈蒙上了深深的阴影。A dark shadow loomed over her.一个黑影赫然向她逼近。A dark shadow leaped out of nowhere.一个黑影不知从哪儿跳了出来。A dark shadow inched its way along the wall.一个黑影沿着墙慢慢移动。The house lay in dark shadow.房子处于浓重的阴影之中。