blockage|blockages

我听不太清楚，所以医生清除了堵塞的耳垢。

I couldn’t hear well, so the doctor removed the earwax ___blockage.

水管中的堵塞导致水流无法通过。

The ___blockages in the pipes prevented water from flowing through.

排水管里的堵塞导致了厨房积水。

The ___blockage in the drain pipe caused water to flood the kitchen.