window dressing

window dressing n [U]
something that is intended to make people like your plans or activities, and to stop them seeing the true situation - used to show disapproval

Called up earlier in the day from Triple-A Tacoma, Wilson would get to Sabathia for a homer in the fifth inning, but by then it was window dressing with New York holding a 6-1 lead.

Matsui is streaky...can go from great to abysmal in one game.

The problem is, for the playoffs, they have you over a barrel and you really want to go.
這個片語以前就寫過了，這次是複習。