[误] Your face is all red.

　　[正] You are in ruddy health.

　　注：“红光满面”是说一个人身体很好，而 You face is all red 则指对方满脸通红，似乎“不好意思”或“牌窘境”，皮肤过敏也未可知，总之与原句不符。a ruddy complexion 虽然有“面色红润”的意思，但没能充分表达出汉语“身体健康，精力充沛”的意思。当然，除了第二句译文，还可以用 You look so healthy and full of pep 或 You look the very picture of health and energy 来表达。