(noun.) emptying something accomplished by allowing liquid to run out of it.
(noun.) a gradual depletion of energy or resources; 'a drain on resources'; 'a drain of young talent by emigration'.
(noun.) a pipe through which liquid is carried away.
(noun.) tube inserted into a body cavity (as during surgery) to remove unwanted material.
(verb.) empty of liquid; drain the liquid from; 'We drained the oil tank'.
(verb.) deplete of resources; 'The exercise class drains me of energy'.
(verb.) flow off gradually; 'The rain water drains into this big vat'.
博妮塔校对
整理:怀亚特