Noun:

1. a bag for carrying school books and supplies;

   "found just the right dictionary to fit into his schoolbag"
   

Schooll学校schooln.学校；学派；院系；鱼群v.教育；训练；成群地游school group学校群体school child在校儿童school image学校形象school plant校舍,学校建筑school years受教育年限school horse受训练的马匹school field学校场域schoolfellown.同学school lunch学校供午餐school badge学校徽章

1. The schoolbag is for Mary for her new school year.
   书包是给玛丽的新学年礼物。
2. My brother always misplaces his schoolbag.
   我弟弟常常乱放他的书包。