平板马车一种轻便的四轮马车，车身为一有弹性的平板，上设座椅，无顶盖 A four-wheeled open carriage with the seat or seats attached to a flexible board running between the front and rear axles.
应该用皮带把小孩子系到专用汽车座椅里。 A small child shall be strapped into a special car seat.
座椅按照顺序排列，这使得礼堂里显得很宽敞。 The systematic arrangement of chairs makes the hall look spacious.
座椅的外罩是聚氯乙烯（做）的。 The seat covers were (made of) PVC.
