Oh, I see, Carpet can be difficult to clean.
我明白，地毯是很难清洗的。
The stain on his shirt is difficult to clean off.
他衬衣上的污点很难去除掉。
You may find it difficult to clean up the oil on the clothes.
你会发现要洗掉衣服上的油渍很难。
Teeth covered by an operculum can be difficult to clean with a toothbrush.
被盲袋覆盖的牙齿很难用牙刷清理。
Children are more difficult to keep clean, making light colored outfits a risk.
给孩子们穿上浅色外装非常冒险，因为让他们保持整洁难度更大。
Which part of your body is difficult to be clean?
沐浴时那些部位较难清洗?。
John's task, to clean the room seems very difficult.
约翰的任务-打扫房间，好象很难。
John's task, to clean the room seems very difficult.
约翰的任务-打扫房间，好象很难。
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