A: Mary didn't pass the final exam in physics.
B: She must be very sad.
A: Her parents scolded her severely and she's very depressed now.
B: At a time like this, what she needs is a pat on the back rather than a blame.
a pat on the back
A pat on the back的意思是“鼓励，肯定或赞许”。其英文解释为：praise given to a person for an achievement or a job well done。
E.g. She deserves a pat on the back for all the hard work she's done.
E.g. The teacher gave her a pat on the back after she did well in the exam.
E.g. She received a pat on the back for doing a good job.
E.g. Treating his daughter to ice cream was Joe's way of giving her a pat on the back after she won first place in the science fair.
E.g.. The only reason she stays late at work is to receive a pat on the back from her boss.
pass the exam：考试及格
E.g. He made an attempt to pass the exam, but it was too difficult.
E.g. It was a great blow when he failed to pass the exam.
at a time：一次
E.g. That term, John stayed away from school for weeks at a time.
E.g. She spoke half an hour at a time.
at a time like this：在这时候
E.g. If you had a nest egg, you wouldn't feel so worried at a time like this.
E.g. At a time like this, I do not grudge a thing.
E.g. I would describe her as handsome rather than beautiful.
E.g. It ought to be you rather than me that sign the letter.