一次突然的停电使整栋大楼陷入黑暗。

A sudden power failure plunged the entire building into ___darkness.

她吓得不敢动，只是站在那里，凝视着那片令人窒息的黑暗。

She was too scared to move, so she just stood there, staring into the overwhelming ___darkness.

厚厚的云层遮住了月亮，让森林完全笼罩在黑暗之中。

The thick clouds blocked the moon, leaving the forest in complete ___darkness.