For example, ’Un is a very common prefix in the English language.’

例如，在英语语言中un是一很常见的前。

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的前得相反的意思。

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

以下的公制单位中，哪一前表示" 十亿" ？

That prefix is often used to mean the negative or the opposite of something.

前通常用表示否定或事物的反义词。

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

不，尼尔，虽然它们有相同的前" 微" 。

Now, uncooked is an example of the vocabulary area we're looking at today — prefixes.

未烹饪过的就是我们今天要学的前词汇之中的例子。

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

如你所见，字都有 意味着「均等」的字首。

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

前是我们添加到单词开头的字母。

Adding a prefix to a word makes a new word with a new meaning.

给单词添加一前就会造就一具有新含义的新单词。

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

我们通过向词根添加前和后创造新词。

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

或者是他非常‘pro’...些是可以使单词突然变得不同的前。

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

上述前按顺序分别表示千、百万、十亿和万亿，其中giga表示十亿。

The prefix in can change the meaning of a word into its opposite.

前 in 可以把一词的意思变成它的反义词。

I mean they know more about multiple meanings, prefixes, suffixes, word rules.

我的意思是他们更了解多种含义，前，后，单词规则。

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

你想通过学习英语中的否定前提高你的词汇量吗？

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

但是in-也是一常见的否定前，于是引出了第二种释义。

Adding the prefix for created forlorn, meaning to be lonely or sad.

加上前“for”就构成了“forlorn”，意为“孤独的”或“悲伤的”。

See you all in my next video about negative prefixes.

我们下一关于否定前的视频中再见。

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

字的字首意思是“下”。

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

我们有“寻常的”，意思是普通的，我把前放进去，就变成不寻常了。