He is not much of an administrator himself: though he can use statistics to good effect when he wants to, he has no great grasp of figures. 他本人算不得一个好的行政官员，尽管在他需要的时候他能有效地运用统计资料，可他对数字的掌握却不够好。
Mary's leading card was her charm. She played it time and again to good effect. 玛丽的法宝是她的魅力，她一再玩弄这张王牌，玩得颇有成效。
The room shows off her paintings to good effect. 这个房间把她绘画的优点充分显示出来。
