He began testifying in federal court in New York and acknowledged key mistakes before the company's collapse.

他在纽约的联邦法院开始作证，并承认了公司倒闭前犯下的重大错误。

I want to talk to you about the three key mistakes that I think we're making.

我想和你们谈谈我认为我们正在犯的三个关键错误。

So what was the key mistake that you think the countries you gave an F to made?

CA：那么你认为你给 F 的国家犯的主要错误是什么？

And this is one of the key mistakes that we see students making all the time and it's related to the things you want to avoid in your introduction.

这是我们看到学生经常犯的主要错误之一，它与你在介绍中要避免的事情有关。

Band 5, Band 6 students, either because they don't know how to spell, and there's nothing wrong with that, or what is wrong is people that have been trained to memorize words, phrases, essays, they make these key mistakes.

Band 5、Band 6 的学生， 要么是因为他们不知道如何拼写，这并没有什么错，要么是错误的是那些受过记忆单词、短语、文章的训练的人，他们犯了这些关键错误。