您好bag的音标，
schoolbag
英文发音音标为：英 [‘sku:lbæg]；美 [ˈskulˌbæɡ]
汉字贴近的音为：[使姑被葛]
意思：
n.书包；文具包
复数： schoolbags
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。
