ADJ

blocked

VERB + DRAIN

block
clear, unblock
lay
They were busy laying the drains for the new houses

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

ADV

thoroughly, well
Remove the artichokes, drain thoroughly and allow to cool. well-drained soil

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