译文及注释：
译文：
今夜在这皇城中赏月，月光漫撒好似白雪铺满大地。
Tonight in this imperial city I admire the moon and the moonlight spreads like snow covering the earth.
再想想洛阳城，清秀的风光也应是现在的一样。
Thinking again of Luoyang city the beautiful scenery should be the same as it is now.
料想你也定当在这个晚上与我同赏一轮明月，也看到水面如镜的湖水。
I imagine that you must also be admiring the bright moon with me tonight and seeing the lake water as clear as a mirror.
总是思念你的心，就像月亮的光即使相隔千里都能看得见。
My heart always longs for you just like the light of the moon which can be seen even when we are thousands of miles apart.
注释：
清光：清亮的光辉。这里指月光。
Qingguang: Bright and clear light. Here it refers to moonlight.