1、schoolbag英文发音音标为：英 ['sku:lbæg]；美 [ˈskulˌbæɡ]
2、意思：n.书包；文具包
3、复数： schoolbags
4、例句：
This is his textbook. Mine is in my schoolbag.这是他的课本。我的课本在我书包里。
Yesterday I went shopping to buy schoolbag with my friend.
昨天我和我的朋友一起去买书包。
I think your old canvas schoolbag is still usable. 我觉得你那个旧帆布书包还能用。