这时，半圆的月亮刚刚离开乌云滚滚的地平线。

The moon, on the wane, scarcely left the horizon, and was covered with heavy clouds;

youdao

夜是漆黑的。这时，半圆的月亮刚刚离开乌云滚滚的地平线。那些高耸入云的大树越发增加了这种黑暗的气氛。

The night was dark. The moon, on the wane, scarcely left the horizon, and was covered with heavy clouds; the height of the trees deepened the darkness.

youdao