roller
noun uk/ˈrəʊ.lər/ us/ˈroʊ.lɚ/
(MACHINE/DEVICE)
[ C ]滚轴；滚筒；轧辊
a tube-shaped object in a machine that turns over and over in order to carry things along or press them down or together
As the hot metal passed between the huge rollers it was pressed into thin sheets. 炽热的金属块从巨大的轧辊中穿过，马上被挤压成薄薄的金属片。
[ C usually plural ]（烫发用的）卷发筒，发卷
a tube-shaped device, often heated, that women use to curl their hair
She answered the door with her rollers in. 她开了门，头上还戴着发卷。
[ C ]滚轧机;碾轧机;压路机
a heavy machine used to make surfaces smooth and flat
The men used a roller to flatten the tarmac. 那些人用压路机轧平柏油碎石路面。
See also: steamroller noun (VEHICLE)
(WAVE)
[ C ]卷浪;长涌
a large, long wave on the sea