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Let's increase our vocabulary.
一起来扩充词汇量吧。
Mini English Lessons
迷你英语课
One great way to increase your vocabulary is by using suffixes.
扩充词汇量的一个好办法就是用后缀。
A suffix is when you take your existing stem word and you add a small group of letters to the end to change the meaning or the function.
后缀就是在一个已有的词干后面，加上一组字母，从而改变词干的意思或语法功能。
You will already know a couple, like adding -er to make the comparative, or -est to make the superlative.
你已经知道一些后缀，比如加-er变成比较级，加-est变成最高级。
Some other suffixes that are common that you might already know are -ful and -less,
你还知道的一些常用的后缀可能是-ful和-less，
to talk about something that is full of something or has nothing. Like, helpful.
表示充满了某物或者没有某物。比如helpful（有帮助的），
This Mini English Lesson is super helpful.
这个迷你英语课很有帮助。
Or helpless.
或者helpless（无助的）。
A newborn baby is helpless when they are born.
刚出生的婴儿很无助。
Another example would be -ical.
另一个例子是-ical。
We add it to a noun, like logical, related to logic, historical, related to history, economical, the list is endless.
这个后缀加在名词后面，比如有逻辑的，与逻辑相关；历史上的，与历史相关；经济的等等。
The final example that you might already know is -able, meaning that you are able to do something. So doable.
最后一个你可能知道的后缀是-able，表示能够做某事，比如doable（能做到的）。
After today's Mini English Lesson, using suffixes will be completely doable for you.
听完今天的迷你英语课，使用后缀就是你完全能够做到的事了。
Just be careful! Sometimes the spelling of able is with an 'i', -ible, like accessible.
请注意，有时候able的拼写要变成ible，比如accessible（可用的/可及的）。
These Mini English Lessons are accessible for everyone.
迷你英语课可供所有人使用。
Some less common suffixes that you might not know of are the following.
不那么常见的、你可能不知道的后缀有下面这些。
So you can take a verb like "to improve" and add -ment, improvement to make the noun.
比如在动词improve后面加上ment，变成名词improvement。
To develop, development.
develop可以变成development。
You could use -ous, o-u-s, adventurous, dangerous, where you're taking the noun, adding the suffix to get an adjective.
还可以用-ous, 比如adventurous（冒险的），dangerous（危险的），名词加这个后缀可以变成形容词。
We can also use things like -er or -or.
还可以用er或者or。
You add this to the noun or the verb, paint, to paint.
在名词或动词后面可以加这个后缀，比如动词paint（画画），
We add the -er and you get the person who does it. I am a painter.
加上er表示做某事的人：我是一个画家/画画的人。
Instruct, to instruct, add -or, instructor.
动词instruct（教导）后面加or变成instructor（老师/教导者），
I am an English instructor or teacher.
我是英语老师、
It's the same principle.
道理都是一样的。
The last one I want to talk about is like.
最后一个词缀是like。
We can add this to describe something that is similar to something else.
用这个词缀表示某物和另一个事物很相似。
For example, businesslike or childlike.
比如：businesslike（像办公务一样的），childlike（像孩子一样的）。
There you go. Keep an eye out for suffixes because this is a really great way to improve your vocabulary by already relying on what you know.
这些就是后缀。请留意后缀，因为这是扩大词汇量的一个很好的办法，可以在你已有的词汇量的基础上扩充。
