injury可数吗

例句：

1、 When muscles are taut or cold there is more chance of injury or strain

肌肉绷紧或受凉时更容易损伤。

2、Two players are out of the team because of injury.

两名队员因伤退出了比赛。

3、This new injury will put him out of action for several weeks.

这次的新伤将使他几周无法动弹。

4、The injury could mean him missing next week's game.

这次受伤可能使他无法参加下周的比赛。