身体不好的英文是in poor health; out of health; in bad condition。
短语:be in poor health 身体不好 ; 健康不佳 ; 身体虚弱。remain in poor health 身体不好。My grandparents in poor health 我爷爷奶奶身体不好。
例句:He is in poor health.。他身体欠佳。
Don't set him the task. For one thing he's old; for another he's in poor health.。不能让他去干,一则年纪大,二则身体弱。