Professor Flitwick put the class into pairs to practice.

弗立维教授把全班同学分成两个开始训练。

I'm going to come amongst you now and put you all into pairs.

现在我到你们中间来，把你们都分成两个。

Into pairs, please. Who wants to go with this?

两个 谁想和她？

I’d like you to line up in twos, please.

【two】请你们两个排好队。

So there was group of five, I met a group of two, and then a group of three.

我们有个，我遇到了两个，然后是三个。

Yeah, they teamed us up as partners. Joey picked three scenes for us to do.

对 我们两个 乔伊选了三场戏。

We worked in pairs for the role-play exercise.

【pair】我们两个地进行角色扮演练习。

Then the children followed Miss Pimento, two by two, down the hall out the door and down the block to the park.

然後孩子们跟在琵师身後，两个两个，走向大厅，出了大门，越过个街区来到公园。

We just say either the individual numbers (1-2-5-7) or we group them in groups of two or three.

我们只是说出单个数字 (1-2-5-7)， 或者我们将它们分成两个或三个。

A " skill set" (two words) is a group of things that you are able to do, things that you are good at.

“技能集”（两个词）是你能够做的事情，你擅长的事情。

The" other symbols" are actually a group of consonants that involve more than one place or manner of articulation, which cannot be placed into one of the slots in the consonant chart.

“其他符号” 实际上是涉及两个发音部位或发音方式的辅音，无法放入辅音表的空格中。

" And next, there were some letters ... several letters, of which all that can be made out for certain are a group of three followed, immediately after, by a group of two letters" .

“接下来，有些字母… … 几个字母，其中所有可以肯定的是三个字母，紧接着是两个字母”。

With the functionality and components of a basic switch wrapped up, let's now take a look at  multi-way switches, specifically three-way switches which are used when we want to have two  light switches control a single set of lights.

了解了基本开关的功能和件后，现在我们来看看多路开关，特别是三路开关， 当我们想用两个电灯开关控制灯时就会用到这种开关。