Technically, rogue AV is often hard to detect because the software is essentially a confidence trick.

从技术上来讲，流氓反病毒软件之所以常常很难被发现，是由于这种软件实际上是一个骗局。

Prof: Right, ok and one thing that will help, I mean it won't do the trick completely because that confidence has to come from you.

教授：好，一件对这有帮助的事是，我的意思是，不会完全把技巧教给你们，因为自信源于你们自身。

Confidence in yourself is the first trick of success.

自信是成功的第一诀窍。

Juventus hitman David Trezeguet was full of confidence following his hat-trick in last weekend's 5-1 win over Livorno.

尤文图斯的射手特雷泽盖在上周末的5：1大胜利沃诺中上演帽子戏法，现在他对自己以及球队充满信心！

In the end he got a hat-trick and that will give him the needed confidence.

我们给予了他需要的信心他最终也就带给我们一个帽子戏法。