ADJECTIVE | PREPOSITIONADJECTIVE➤double, king-size, queen-size, single雙人/特大號/大號/單人牀墊▸➤comfortable, cushy (NAmE) 舒適的牀墊▸➤firm, hard硬牀墊▸➤soft, springy軟牀墊;彈力牀墊▸➤lumpy高低不平的牀墊◇an old bed with a lumpy mattress牀墊高低不平的舊牀➤thin薄牀墊➤air, blow-up, inflatable氣墊;充氣牀墊;可充氣牀墊➤foam泡沫牀墊➤cot, crib (NAmE) 嬰兒牀墊PREPOSITION➤on a/the mattress在牀墊上◇The children slept on mattresses on the floor.孩子們睡在地板上的牀墊上。➤under a/the mattress在牀墊下◇My grandmother keeps her money under the mattress.我祖母把錢藏在牀墊下面。