Of course, there are exceptions, of course, there are fixed phrases.

当然也有例外，当然也有固定词组。

Also as a fixed phrase " to make sure... something" .

也可以用作固定短语 to make sure… something。

These are fixed phrases, but you can adapt them to express different ideas.

这些是固定的短语，但是你可以调整它们来表达不同的想法。

We think level five is the hardest, because it tests a lot of fixed and conversational phrases.

我们认为级别五是最难的，因为它测试了很多固定的和会话性的词组。

'Do your best' is a fixed phrase meaning 'try as hard as you can.'

“Do your best”是一个固定词组，意思是尽力而为。

There are many fixed phrases with 'do', like 'do someone a favour'.

有很多与“do”搭配的固定短语，例如“do someone a favour”。

What do you reckon is almost always used as a fixed phrase.

“What do you reckon”基本上是作为一个固定短语使用。

It can be a main verb, an auxiliary verb, or it can be used in fixed phrases and phrasal verbs.

它可以是主动词、助动词，或也可以用于固定短语和动词短语。

Let me get this straight and this is a fixed phrase.

让我弄清楚这一点，这是一个固定的短语。

And then " before coming to a reasoned conclusion, " just another memorized fixed phrase.

然后“在得出合理的结论之前”，只是另一个记住的固定短语。

There are some fixed phrases with 'in' that don't follow a clear pattern.

有一些带有“in”的固定短语不遵循明确的模式。

There are a few fixed phrases with 'at' that it's better just to memorise.

有一些带“在”的固定短语，最好记住。

You will not be able to go into the real world and use these fixed phrases.

你将无法进入现实世界并使用这些固定的短语。

This is one of the best ways to really memorize prepositions is to memorize those full fixed phrases, to talk about something.

真正记住介词的最好方法之一就是记住那些完整的固定短语，谈论一些事情。

So, to review, the topics covered in level three are: indirect questions, 'do' as an auxiliary verb, negative infinitives, 'do' versus 'make', and fixed phrases with 'do'.

让我们来回顾一下，第三级别涉及的主题是：间接疑问句，“do”做为一个助动词、否定不定式，“do”与“make”以及带有“do”的固定词组。

(The subjunctive of to be is be .) Everyone knows a host of fixed phrases using it, even if they don't realise they are subjunctives.

（to be 的虚拟语气是 be。）每个人都知道使用它的许多固定短语，即使他们没有意识到它们是虚拟语气。