unblocking

动词 unblock:

1. clear or remove an obstruction from
   同义词：unblock
2. play the cards of (a suit) so that the last trick on which a hand can follow suit will be taken by a higher card in the hand of a partner who has the remaining cards of a combined holding
   同义词：unblock
3. make (assets) available
   同义词：unblock, unfreeze, free, release

1. The state or quality of being open, expanded, or unblocked.
   开放，不闭合公开的、展开的或打开的状态或性质
2. We had to call a plumber to unblock the drains.
   我们得叫管工来通一通下水道。