late 14c., "rebel," agent noun from rise (v.). Meaning "one who rises" (from bed, in a certain manner) is mid-15c. Meaning "upright part of a step" is from 1771.
双语例句
1. He is an early riser.
他惯于早起.
来自《简明英汉词典》
2. He was an early riser and he would be at the breakfast table at seven.
他习惯早起，7点钟就坐在桌前吃早餐。
来自柯林斯例句
3. Our manager is an early riser.
我们的经理是一位精明能干者.
来自口语例句
4. Sulfur content of gasoline reduces gradually along the riser.
汽油硫含量沿提升管高度增加而逐渐降低.
来自互联网
5. Using a stencil I then draw out the shape of the riser.
