1,敬老活动(除了go to old people's house.)
senior citizen activities 例如volunteering at a nursing home在疗养院做志愿服务
2,运动器材
fitness equipments 或 exercise equipments 例如treadmills 跑步机
3,烟头
cigarette butts
4,尘土（不要搞个GRE的尘土.不要那么文艺的.生活一些.）
dust
5,整理图书
clean up your books 如书放的很乱,那你就说clean up your books就是叫人要把书整理好.
6,短片(short moive就算了亲.)
short films