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
make (assets) available;
"release the holdings in the dictator's bank account"
例句
用作及物动词 (vt.)
A telephone call between Mary and Jack will unblock the whole situation. 玛丽和杰克之间的一段电话通话扫除了一切障碍。
We had to call a plumber to unblock the drains. 我们得叫管道工来通一通下水道。
Father told me to unblock the pipe to let the water run through. 父亲叫我把管子打通, 让水流过去。