block up阻碍
例句:The entrance to the city was blocked up.
城门口被堵住了。
2.And just to follow up on that, there have been reports that you are considering a lawsuit.
follow up跟着; 追逐; 继续
例句:You start the work, and I'll follow up.
你先开始工作, 我会接着做。
The chairman followed up with another question.
主席接着又提了一个问题。