drain的中文意思、音标与词形变化

n. 排水沟, 消耗, 排水 vt. 排出, 喝光, 耗尽 vi. 排水, 流干

n. emptying something accomplished by allowing liquid to run out of it n. tube inserted into a body cavity (as during surgery) to remove unwanted material n. a pipe through which liquid is carried away n. a gradual depletion of energy or resources