cylinder cover

详细解释:【机】 缸盖

例句：

A small cardboard cylinder covered with decorative paper that holds candy or a party favor and pops when a paper strip is pulled at one or both ends and torn.彩包爆竹外面包有装饰性硬纸板的小圆筒，里面装有糖果或聚会纪念品，从一端或两端同时拉出纸绳时，会发出爆裂声