【理】virtual work

指出力多、收效少的事情matter that requires much effort for little reward

• 群众对一些领导同志的这种忙，称之为“虚功”。

  The public say that the busyness of some leading comrades is "much effort with little to show for it"

• 必要的学习交流当然需要，但多了，就会成为虚功。

  Necessary academic exchanges are a must, but if there are too many of them, they end up taking a lot of effort and yielding little reward.