haversack的复数形式怎么写？

n.粗帆布背包...

He got my haversack from the cab and dumped it at my feet.他把我的背包从出租车上取来丢到我脚下。He put two bottles of wine and half a cheese into his haversack.他把两瓶酒和半个干酪装在粮袋里.Do you think it would be dishonest if we went through his haver...

haversack的音标：haversack的英式发音音标为：['hævəsæk]haversack的美式发音音标为：['hævərsæk]...