请输入您要查询的英文单词：
单词
riser
释义
riser
NOUN
C
/ˈraɪzə/
1
the upright part of a stair （楼梯的）竖板
2
often plural
a set of stairs for a group of people to stand on , which can be moved （供人们站立的）活动平台
PHRASE
-
early/late riser
someone who usually gets out of bed earlylate
早/晚起床的人