Deception is the act of making someone believe something that is not true — and doing it on purpose.

Deceptiondeception（欺騙）is the act of making someone believe something that is not true是讓某人相信不真實的事情的行為——and doing it on purpose而且是故意這麼做的。

A lie can be one sentence. Deception can be that, or a whole show: a fake story, a false name, a trick photograph.

A lie can be one sentence一個謊言可以只是一句話。Deception can be thatdeception 可以是這樣，or a whole show也可以是一整套演出：a fake story, a false name, a trick photograph一個假故事、一個假名字、一張造假的照片。

The important piece is the intention. If you get a fact wrong because you did not know, that is a mistake, not deception.

The important piece is the intention重要的是「意圖」這一點。If you get a fact wrong because you did not know如果你因為不知道而說錯了事實，that is a mistake, not deception那是一個錯誤，不是 deception。

The word is a little formal. Friends more often say lying, a trick, or “he fooled me.” You will meet it in news, law, and school reading.

The word is a little formal這個字有點正式。Friends more often say lying, a trick朋友之間比較常說 lying（說謊）、a trick（一個花招），or "he fooled me."或「he fooled me」（他騙了我）。You will meet it in news, law, and school reading你會在新聞、法律，還有學校的閱讀教材裡遇到這個字。

There is also self-deception: talking yourself into a story you half know is not true. That is still deception; only the person you trick is you.

There is also self-deception還有一種是 self-deception（自我欺騙）：talking yourself into a story you half know is not true說服自己相信一個你其實有一半知道不是真的的故事。That is still deception那仍然是 deception；only the person you trick is you只是你騙的對象變成了自己。