英语翻译：回头一笑百媚生,六宫粉黛无颜色!

不好翻译,只能意译+直译
瞎翻译了
Most charming had come forth after she glanced back,
all the beauty in the palaces turned to be bleak.
上边是我乱翻译的,下边的可以直接使用：（当然不是我翻译的了,现成的）
If she but turned her head and smiled,there were cast a hundred spells,
And the powder and paint of the Six Palaces faded into nothing.

back one laugh hundred beautiful come, six house girls no colour.

100 Lee back a laugh Health, Liugong cosmetics without colour.