We need it to complete the clause in the sentence.

需要它来完成句子中子句。

You can add a dependent clause with conjunctions like if, because, although, unless, or wherever.

可以添加一个带有连词从属子句，例如“if”、“because”、“although”、“unless”或者是“wherever”。

There are also subordinating conjunctions, which join dependent and an independent clause.

还有从属连词，它将独立和非独立子句连接在一起。

Sonia, can you help us with other sentences like this?

Sarah 说，而且还必须准备接待明天要来访朋友。 And I have to prepare for friends who are coming to visit tomorrow。本句关系代名词互所引导子句，就是前面名词 friends，来看例句。 I have to cook some food for the people who are coming to dinner。

I'll leave without you is an independent clause, so it makes sense by itself.

就不等了是一个独立子句，所以它本身就有意义。

When it comes to can be placed at the back or front of the main word.

另外 speaking of 或 talking of 後面接动名词或名词时候 也表示说到或谈到 但这两种说法比较口语 而且只能放在主要子句前面 来看一个例句 When it comes to learning a new skill， persistence always plays a vital role 在学习新技能时，毅力经常扮演重要角色。

Up in space, you experience something called microgravity.

Hi， I'm Jack. Today's usage tip is to look at the sentence form of 主词加 suggest， ask， demand 加 that 动词 suggest， ask， demand 都含有建议、要或是命令意味 後面接 that 字句表示提议或要容that 则可以省略喔另外，that 子句中主词无论是单数或复数动词都一律使用圆形动词也可以加上助动词should来强化所建议或要事情语气来看个例句The museum asks every visitor be checked for prohibited items这间博物馆要每位访客都要接受是否携带违禁品检查。

When you step into your hotel room for the first time, what options do they give you?

请注意动名词动作执行者必须为主要子句主词 否则将会造成语意错乱 来看例句 Upon recovering from jet lag， she explored the city with excitement. 她一克服时差就兴奋探索这座城市？

With all conditional sentences, the order of these clauses is not fixed, so you can swap them around.

在所有条件句中，这些子句顺序不固定，所以可以交换它。

A dependent clause is a part of a sentence which would not make sense by itself.

从属子句是句子一部分，它本身没有意义。

Do you remember the definition of a dependent clause?

还记得从属子句定义吗？

So is the world made for introverts or extroverts?

今天 usage tip 是介绍 it 加 has been 加过去分词 加 that 句型 它用於间接引述 以许主词 it 作为开头 搭配现在完成式被动语态 表达一直以来都有 that 子句所述主张 常用於本句型动词 大多具有声称或是揭露含义 除了 argue 以外呢 此句型也可以使用 claimreveal， report 等字词使用被动语态可淡化消息来源并将重点放在所主张容上来看例句It has been revealed that several celebrities were involved in the scandal据透露有多位名人卷入这起丑闻？

Now, you know how to build complex sentences using independent clauses.

现在，知道如何使用独立子句构建复杂句子了。

In this section, you're going to learn about complex sentences with two independent clauses.

在本节中，大家将学习带有两个独立子句复合句。

Again, start moving down in small steps from the start of the clause.

同样，从子句开头开始小步向下移动。

Then, you need another, independent clause to complete the sentence.

然后，您需要另一个独立子句来完成句子。

The head of a clause is the key word that determines its nature.

子句头部是决定其性质关键词。

This is with a sub clause at the beginning.

这是以子句开头。

Finally, you can use a colon between two independent clauses.

最后，可以在两个独立子句之间使用冒号。

A colon tells the reader that what follows is closely related to the preceding clause.

冒号告诉读者接下来容与前面子句密切相关。