W-8:window dressing 报喜不报忧
A:I am the champion in the maths competition, mum.
A:妈妈，我在数学竞赛中得了第一名。
B:That's just window dressing. I know you fought with your classmates yesterday.
B：只报喜不报忧，我知道昨天你和同学打架了。
A:I'm sorry, mum.
A：对不起，妈妈。
