roughen meaning in English
vt.
弄粗糙，使崎岖不平。
vi.
变粗糙，变得崎岖不平。
Examples
- A heavy infection with f. hepatica may be associated with roughened hair coats .
肝片吸虫的重度感染，可伴有被毛粗乱。 - It also includes the results from several studies on artificially roughened pipelines .
这里还包括一些在人工加糙管道内做的试验结果。 - Before painting the wood , roughen the surface with sandpaper
油漆木器前，先用砂低把表面磨毛糙。 - He placed a small box in her work roughened hand
（他把一个小盒子放在她因劳作而变得粗糙的手上。 ） - What has roughen ed your temper
可什么东西惹恼了你了？