1、could，modal用于can的过去时; (询问是否可做某事)能，可以; (礼貌地请求别人做事)能;v.把(食品)装罐保存; 让…卷铺盖走人; 炒…的鱿鱼; 2、[词典]can的过去分词和过去式; 3、[例句]We could hear sounds of revelry from next door.我们能够听到隔壁纵饮狂欢的声音...