我彻底搜查了房子，但还是找不到它。

I've searched the house ___from ___top ___to ___bottom and still can't find it.

我们经常能看到有人从头到脚一身黑，或者一身白。

Very often we can see someone in black, ___from ___top ___to ___bottom, or in white.

公司从上到下彻底重组以提高效率。

The company was reorganized ___from ___top ___to ___bottom to improve efficiency.