1·His carelessness results in a serious blunder.
他的粗枝大叶导致他犯了一个严重错误。
2·His carelessness results in a serious blunder.
粗心大意是一切重大错误的根源。
3·Now, Lisa has made a really serious blunder, but I'm sure he'll give her a slap on the wrist.
现在，丽萨出了一个真是非常严重的错误。不过，我肯定他也只会轻描淡写地惩罚她一下。
4·Now, Lisa has made a really serious blunder, but I'm sure he'll give her a slap on the wrist.
现在，丽萨出了一个真是非常严重的错误。 不过，我肯定他也只会轻描淡写地惩罚她一下。
5·Hillary Clinton made a serious blunder that she used private email as Secretary of state.
希拉里犯了一个严重的错误：担任国务卿期间使用私人邮箱。
6·Making a serious mistake or blunder in life.
比喻人堕落或犯严重错误。