Can't you be careful for just once?

你就不能认真一次吗？

今天的几个句子都是有关表达不满意的：1. The same mistake again! 又犯了同样的错误。2. Trust you to make a mess of it. 就知道你把事情搞得一团糟。3. Now look what he has done! 看看他都做了些什么！4. How could you be so rude? 你怎么能这吗粗鲁呢？