They tried to block up these holes in the wall.
他们设法堵塞这些墙洞。
They will have to block up the entrance to the tunnel.
他们将不得不封闭通往隧道的入口。
The traffic is very heavy, and has begun to block up the streets.
交通量很大，已经开始把街道阻塞住了。
The traffic is very heavy, and has begun to block up the streets.
交通量很大，已经开始把街道阻塞住了。
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