The En Dash, Em Dash and the Double Hyphen are the three types of dashes.

短破折号、长破折号以及双连字符是三种类型的破折号。

When you want to be less formal in writing and still generate a strong emotion, you can use the Em Dash.

当你想在写作中不那么正式，并仍要产生强烈的情绪时，可以使用长破折号。

First, there are two kinds of dashes, called en dashes and em dashes.

首先，有两种破折号， 称为 en dashes 和 em dashes。

You don’t need to worry about this; both en dashes and em dashes do the same job.

您不必为此担心； en dashes 和 em dashes 都做同样的工作。

En dashes have a space on either side of the dash – like this. Em dashes join onto the words before and after—like this.

破折号的两边都有一个空格——就像这样。 Em 破折号连接到单词之前和之后——就像这样。