槽 (cáo): trough

The farmer poured feed into the long wooden trough, and several cows immediately came over and lowered their heads to eat the fodder.

The sink in the bathroom was clogged, and dirty water slowly accumulated, so I had to call a plumber to fix it.

Grandpa put the freshly picked grapes into a stone trough and gently crushed them with a wooden stick, preparing to make his own wine.