Winning 3 gold medals in the Olympic Games takes some doing.在奥运会上摘取三枚金牌可不容易。Keeping everyone happy does take a lot of doing. = It takes some doing. 要让每个人开心是要花大力气的。Catching up four goals will take some doing.追上四分是要花大力气的。It will take some doing to win the game.赢得比赛会有点困难。