The expression combines the adverb " as" with the preposition " per."

该式将副词“as”和介词“per”组合在一起。

Now, we have another couple of expressions.

这儿，我们还有另外两个式。

And we have 11 expressions here which are a little bit more difficult to understand.

我们这里有11个式，有点难以理。

You can also use the expression 'newbie'.

您也可以使用‘newbie’这个式。

Like prepositions in general, they must appear immediately next to the expression they combine with.

与一般介词一样，们必须出现在们所组合式旁边。

Many common expressions or long names are shortened this way.

许多常用式或很长名称都以这种方式缩短。

They're fixed expressions formed from two or three words linked together in different ways.

们是由以不同方式链接在一起两个或三个单词形成固定式。

You can also add prepositions to this expression.

也可以将介词添加到此式中。

A noun, in Mathematics, a statement that two expressions are equal.

一个名词，在数学中，是指两个式相等声明。

What kind of expressions did we use?

我们用了什么样式呢？

In many cases, these expressions take the form of a sentence fragment.

在许多情况下，这些式采用残缺句形式。

Let's hear this expression used in some examples.

让我们听听这个式在一些例子中用法。

It could be another word, it could be an expression.

可以是另一个单词，也可以一个式。

We can write an expression like this. String python space in space course.

我们可以这样写一个式。字符串 python space in space 课程。

Let's recap the expressions that we used.

让我们总结一下我们使用式。

Now, notice that this equation contains two instances of the expression 3x plus 1.

现在请注意，这个方程包含了两个式 3x+1。

Also notice that these expressions somewhat complicate our equation.

还要注意，这些式使我们方程有点复杂。

Can you use all of these expressions in your answer?

你能在答案中使用所有这些式吗？

So use this to check about your color options when you are shopping.

在购物时，请使用此式确认颜色选项。

And of course, we have an expression just for that!

当然，我们有一个专门式！