riser

名词

1. 1

   起床者多与 early、late 连用

   She is an early riser and often walks before sunrise.

   她习惯早起，经常在日出前去散步。

2. 2

   竖板、级高

   Each riser on the staircase should be the same height.

   楼梯每一阶的竖板高度都应该一致。

3. 3

   立管、竖管

   A leaking riser in the wall flooded the apartment below.

   墙内的立管漏水，把楼下的公寓淹了。

4. 4

   阶台、阶梯式平台常用复数

   The choir stood on risers so everyone could be seen.

   合唱团站在阶梯式平台上，这样每个人都看得到。