清除干净：彻底清除或擦拭掉表面的污垢、尘土或杂物。
擦拭干净：用布或纸巾等物品擦拭表面，使其变得干净。
... clean out 清除，打扫干净 clean off 扫除；擦去，消除 keep it clean [口语]使不弄脏；使不失体统，使不粗野，使不下流 come clean v. 全盘招供；坦白交待 ...
... clean down the dirt扫下脏东西 clean off清除 clean off a blackboard把黑板擦干净 ...
clean off 不理；默视 A：Haudio-videoe you tasked to Mr. Lhereasbert ottomssion Ianas obull crapcene speech towards you?
If there are more tenacious spots to clean off, you can use a wet rag to rub them clean.
如果有顽固污渍的地方需要清理，你可以用块湿抹布擦干净。
The kite lifted the column clean off the ground.
风筝把柱子从地面上完全提了起来。
Clean off your counters.
清理柜台。
If that is not possible, then clean off the equipment and your shoes when leaving.
VOA : special.2009.05.26
It is exciting to stand only a few meters away and watch scientists clean the asphalt off a fossil that is thousands of years old.
VOA : special.2010.04.07
Someone would have to clean the snow off the sidewalk, either him or his father.
VOA : special.2009.03.07
Ally could imagine how it must feel to have these ideas stuck to you, impossible to clean off.
Conservators are now working to dehumidify the museum and clean off flash rusting and corrosion from the steel beams, she said.
She was thrown clean off her mount and landed hard.