But in- is also a common negating prefix, leading to the second interpretation.

但是in-也是一个常见否定缀，于是引出了第二种释义。

In metric units, which of these prefixes means " billion" ?

以下公制单位中，哪一个缀表示" 十亿" ？

No, Neil, though it does have the same prefix – 'micro'.

不，尼尔，虽然它们有相缀" 微" 。

IN- is a negative prefix that means no or not.

IN-是一个否定缀，表示没有或没有。

See you all in my next video about negative prefixes.

们下一个关于否定缀视频中再见。

As you can see, both words have the same prefix that means equal.

如你所见，这两个字都有 意「等」字首。

Would you like to improve your vocabulary by learning negative prefixes in English?

你想通过学习英语中否定缀来提高你词汇量吗？

So we create new words by adding prefixes and suffixes to the root word.

们通过向词根添加缀和后缀来创造新词。

So we have " usual" means ordinary, I put the prefix in, it means not ordinary.

们有“寻常”，意思是普通，把缀放进去，就变成不寻常了。

Students could focus on prefixes that are used to give a word an opposite meaning.

学生很有可能会关注词语缀来获得相反意思。

So, when you add a prefix, you get two words for the price of one!

因此，当你给它加上缀时候，就能得到买一送一单词啦！

Now we mentioned the prefix re in rerun in this episode, to learn more about prefixes, click here.

现在，们在这一期节目中提到了“重播”一词中缀 re，要想了解更多关于缀知识，请点击这里。

These prefixes are in order of thousand, million, billion, and trillion with giga denoting billion.

上述缀按顺序分别表示千、百万、十亿和万亿，其中giga表示十亿。

Or he's very 'pro' something -- well they're prefixes which have suddenly become different words.

或者是他非常‘pro’...这些是可以使单词突然变得不缀。

These are the prefixes we have learnt today.

这些是们今天学习缀。

The prefix of this word, kata, means “down.”

这字字首意思是“下”。

So, one of the keys to expanding your vocabulary is to use something called prefixes or suffixes.

所以，扩充词汇量办法学习单词缀和后缀。

Prefixes are letters we add to the beginning of a word.

缀是们添加到单词开头字母。

We'll explain what all three prefixes mean and give you lots of examples.

们将会解释这三个缀是什么意思，然后举很多例子。

'Rate' means to say how good you think something is and 'over' is a prefix which means 'more than'.

rate 表示你认为某事物有多好，over 是缀，意思是“超过”。