莫愁乐·闻欢下扬州闻欢下扬州，相送楚山头，探手抱腰看，江水断不流。

剧中出现的英译：I heard my love was going to Yang-chou And went with him as far as Ch'u-shan. For a moment when you held me fast in your outstretched arms I thought the river stood still and did not flow.

两相比照，是不是很合适？莫愁乐是南北朝之作，从西曲《石城乐》演变而来。

剧中将这一英译的古诗还原为《寄薛膺昆季》楚山清洛两无期，梦里春风玉树枝。何况芙蓉楼上客，海门江月亦相思。

如果根据英文搜索，应是ArthurWaley的英译，题目是FIVE "TZŬ-YEH" SONGS——看起来特别像《子夜歌》。