passage through an object / passage of a test in school / passage of a bill / passage through a screening

pass through something / pass a test / pass a bill / pass a screening

filtration / percolation

filter / percolate

bacterium; germ

special

equipment; device

特別: specially, particularly, exceptionally

water (sometimes cold and/or fresh) / drinking water / a fluid, liquid / a flood / (sumo) Short for 水入り (mizuiri): halting

strainer; colander; filter