drain noun
1 pipe/hole that dirty water goes down
ADJ. blocked
VERB + DRAIN block | clear, unblock | lay They were busy laying the drains for the new houses.
2 sth that uses up time/money/resources
ADJ. heavy, major, serious | brain scientists joining the brain drain (= moving to a country where they can work in better conditions and earn more)
PREP. ~ on These losses have been a major drain on the company's resources.
drain verb
1 make sth empty/dry
ADV. thoroughly, well Remove the artichokes, drain thoroughly and allow to cool. well-drained soil
2 make sb/sth weaker/poorer, etc.
ADV. totally, utterly | emotionally, physically | away draining away the country's coal reserves
PREP. of His voice was utterly drained of emotion.
PHRASES be/feel drained Sue felt exhausted and emotionally drained.
You can also check other dicts: drain (English, 中文解释 ), wordnet sense, Collins Definition