He tried to camouflage his real intentions by talking about friendship and so on.

他大谈友谊之类的话,以饰他真实的意图。

She couldn’t answer the question, so she tried to put up a smokescreen by talking angrily about the interviewer’s rudeness.

她答不了这个问题，于气地评论起采访者的无礼，以做护。