They rubbed the cloth along to clean the edges of the panels.
他们用布块擦来擦去，以擦净嵌板边沿。
clean or wipe(sth)with a swab
用拭子拭抹或擦净（某物）
wash, wipe, scrub, brush, etc sth clean
把某物洗、 擦、 擦洗、 刷...乾净.
She scraped her boots clean.
她把长靴擦得乾乾净净。
She dusted out the cupboard
她把碗橱擦得干干净净。
Parrot： Wipe your feet! Wipe your feet!
鹦鹉：把脚擦乾净，把脚擦乾净！
rub the surface smooth, clean, dry, etc
把表面擦光、 净、 乾等.
rub the surface smooth,clean,dry,etc(with a cloth)
（用布）把表面擦光、净、干等.
He scrubbed the walls clean.
他把墙壁擦洗干净。
He scrubbed himself down.
他使劲把自己擦洗干净。
The mother told her son to wipe his face clean.
母亲叫儿子把脸擦干净。
Wipe dipstick clean.
将引擎机油尺擦干净。
The nurse has just swabbed the wound out properly.
护士刚刚将伤口擦干净。
These pots clean easily.
这些罐子很容易擦干净。
Wipe your shoes on the mat.
在垫子上擦干净鞋子。
a BlackBoard that ruBs clean easily.
很容易擦干净的黑板
Brush up my shoes, please.
请帮我把鞋擦干净。
Please scrub me bath out.
请把浴池擦洗干净。