We can sleep seven or eight people in the house at a push.不得已时，我们这间屋子可以睡上七八个人。It's a difficult procedure that can take 7 or 8 hours.这是一次可能会耗时七八个小时的高难度手术。Instead of playing with seven or eight ball players, we are now playing with twelve or thirteen.我们现在的对手不是七八个控球能手，而是十二三个。