bundle up.1.■(使)穿暖和(或臃肿)[亦作 wrap up](a-gainst)：A blizzard was raging but the boy and girl were all bundled up.大风雪在狂虐，但男女孩子们全被穿得暖暖和和。The old man bundled up against the cold.老人穿得厚厚的，以抵御寒冷。2.■把…包(或捆扎)起来：I bundled up those books and took them to the post.我把那些书包扎好拿去邮寄。