Tra từ ballcock - Từ điển Oxford Advanced Learner 8th

Từ điển Oxford Advanced Learner 8th

ballcock ball·cock [ballcock ballcocks] BrE [ˈbɔːlkɒk] NAmE [ˈbɔːlkɑːk] noun a device with a floating ball that controls the amount of water going into a container, for example the water tank of a toilet