“shut up”是閉嘴的意思，那“shut down”呢？

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

停工;完全關(guān)閉;停下；<非正>阻止去說(shuō)，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，倫敦所有的主要火車(chē)站和地鐵站都關(guān)閉了。

《柯林斯高階英漢雙解學(xué)習(xí)詞典》

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.

我們本來(lái)有計(jì)劃的。幫助Linda和Tulio 找到鸚鵡，然后回家?？墒俏腋f(shuō)時(shí)，她根本就不讓我說(shuō)。

聽(tīng)寫(xiě)練習(xí)

Look, this thing is impossible to shut down.

聽(tīng)著，這東西不可能關(guān)掉。