shut down( Informal)：stop from doing or saying something:

　　停工;完全关闭;停下；<非正>阻止去说，或做某事

　　After the second explosion, all of London's main train and subway stations were shut down

　　第二次爆炸后，伦敦所有的主要火车站和地铁站都关闭了。

　　We had a plan. Help Linda and Tulio find the flock and get home. But when I mentioned it to her, she completely shut me down.

　　我们本来有计划的。帮助Linda和Tulio 找到鹦鹉，然后回家。可是我跟她说时，她根本就不让我说。

　　听写练习

　　Look, this thing is impossible to shut down.

　　听着，这东西不可能关掉。