1. They left under (the) cloak of darkness.
    他们在黑暗的遮掩下离开了.

2. They looked in the folds of her dress, in the folds of her cloak, in the pockets, everywhere.
    他们在礼服的折叠处，在斗篷的缝隙中，在衣兜里，四处都找遍了。