n.阻塞；舞台调度；[计]组块
动词block的现在分词形式.
Don't stand there blocking the gateway! 别站在那儿挡着门口！
The wind drifted the snow into a high bank, blocking the road. 风把雪吹积成长埂，堵塞了道路。
Mind out (of the way) you're blocking the passage. 让让(路)--你挡道了。
n.程序分块(解除封锁)
