I had no idea of the gaffe which I was committing.我不清楚我犯了什么错误.He didn't realize what a gaffe he'd made.他没意识到自己已出乖露丑.Wuduo stuck out her tongue in dismay at her gaffe.五多把舌伸伸,表示口不关风说错了话....
"I'm afraid he's ill." — "I'm sorry to hear that."“恐怕他生病了。”——“真是遗憾。”She was so ill that she was put on a respirator.她病得很严重，被戴上了人工呼吸器。These various complaints are part of a continuum of ill-health.这些各种各样的疾病...