隐没

shān gǔ yǐn mò zài yī piàn hēi àn zhōng

山谷隐没在一片黑暗中。

The valley lay in darkness.

tā men kàn zhe shú xī de qún shān jiàn jiàn yǐn mò dào hēi yè zhōng

他们看着熟悉的群山渐渐隐没到黑夜中。

They watched the familiar mountains fade into the darkness.