roughen
🇺🇸
/ˈrʌfn/
🇬🇧
/ˈrʌfn/
verb
R
to make or become not smooth
The smooth stone starts to roughen after being in the water for a long time.
光滑的石头在水中待了很长时间后开始变得粗糙。
translation
使变粗糙
词形变化
3rd Present
roughens
Past
roughened
Perfect
roughened
Progressive
roughening