動詞 unblock:

1. clear or remove an obstruction from
   同義詞：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
   同義詞：unblock
3. make (assets) available
   同義詞：unblock, unfreeze, free, release

1. The state or quality of being open, expanded, or unblocked.
   開放，不閉合公開的、展開的或打開的狀態(tài)或性質(zhì)
2. We had to call a plumber to unblock the drains.
   我們得叫管工來通一通下水道。