That email you didn't send, the calculation you misread, the realisation that the deadline was yesterday... all followed by a sinking feeling, a quickening of the breath and the realisation that it's your fault.
你没有发送的那封电子邮件、你看错的计算结果、你意识到截止日期是昨天......所有这些都会让你的心情跌到谷底、呼吸急促,并意识到这都是你的错。