You are off colour; you'd better take a rest.
你气色不好，休息一下吧。
youdao
She has been off colour recently.
她最近气色一直不好。
Doctor:Right. Well, we'll just have a look. Uh, Sir, has he been a bit off colour lately.
医生：好。我们就来看一看。唔，先生，他近来是不是精神有点不好（身体有些不舒服）
Yes, you look a bit off-colour.
是的，你看起来气色不太好。
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