The corner post of the bed was smeared darkly with something the flies liked.

床的角柱上涂满了苍蝇喜欢的颜色。

Oh, but it was only the four corner posts and the middle ones for the two long sides he wanted help with, that was all.

哦，但他需要帮助的只是四个角柱和两个长边的中间柱子， 仅此而已。