选择最佳译文：有些厕所仍然是这次尾声大扫除活动的死角。（ ） A: Some toilets seem immune to the clean-up campaign. B: Some toilets seem to be still dead corners in the clean-up campaign. C: Some toilets seem untouched in the clean-up campaign. D: Some toilets seen to be still dead corners in this cleaning movement.

There are toilets in the front and rear of the cabin. toilet的中文含义指().