suitcase可数吗?
suitcase是一个可数名词；
suitcase
n. (旅行用的)手提箱；
复数 suitcases
He was carrying a suitcase.
他提着一只手提箱。
My clothes won\'t all go in that one suitcase.
一个箱子装不下我所有的衣服。
You can leave your suitcase here for the time being.
你可以暂时把衣箱留在这儿。
She sorted through her suitcase for something to wear.
她翻遍衣箱找件穿的。
My suitcase was full of books.
我的提箱装满了书。