1 a large ship that carries people, etc long distances 邮轮,大客轮(用于远程航行)
☞picture at boat 见boat插图
2 something that is put inside sth else to keep it clean or protect it. A liner is usually thrown away after it has been used 活衬套,活衬里,活动衬垫(起防污作用或保护作用的):
a dustbin liner衬在垃圾桶内的垃圾袋