When are the two words interchangeable? Thanks.

这两个词什么时候可以互换？多谢。

So, they are not interchangeable all the time.

所以，它们不是一直都可以互换的。

But left and right seem to be more interchangeable.

但是左和右更可能相互转换。

And also, all the accessories are collectible and interchangeable.

而且，所有的配件都是可以收藏和互换的。

I will also explain when the two words are interchangeable.

本期中，我也会讲解在什么情况下，这2个词是可以互换的。

The phrases " take note" and " make note" are sometimes interchangeable.

" take note" 和" make note" 这两个词组有时候是可以互换的。

When used as a noun, " limelight" and " spotlight" are interchangeable.

当被用作名词时，“limelight”和“spotlight”是可以相互替换的。

But club soda, seltzer, and sparkling water are not interchangeable.

但是club soda（苏打水）、seltzer（赛尔托斯）和 sparkling water（天然气泡水）并不是同样的饮品。

Easy answer --- nothing! The words are interchangeable and an issue of personal choice.

答案很简单——没区别！这俩词是可以互换的，这是个人选择的问题。

But sometimes it is not. So, they are not interchangeable all the time.

但有时候不是。因此，它们不总是可以互换的。

These words are not actually interchangeable but they have a similar function in our sentences.

这两个词实际上是不能互换的，但在我们的句子中具有类似的功能。

In the United States, the words " couch" and " sofa" are generally interchangeable.

在美国，" couch" 和" sofa" 这两个单词通常可以互换。

" Via" on the other hand means to go through something. These two are often interchangeable.

Via则是通过某种媒介。这两个词经常可以互换。

When talking about a specific meal or food, the verbs " eat" and " have" are often interchangeable.

当谈论特定餐食时，动词" eat" 和" have" 通常可以互换。

We will talk about when " if" must be used and when " whether" and " if" are interchangeable.

届时我们将讨论什么时候必须使用“if”，以及什么时候“whether”和“if”可以互换。

These rebates are mostly used for expensive brand-name prescription drugs in categories in which there are interchangeable products.

这些回扣主要用于在这其类别中有可互换产品的昂贵的品牌处方药。

And I'm not sure which one of these, sort of interchangeable sometimes.

而且我不确定其中哪一个，有时可以互换。

When can I use " will" with the same meaning of " want" ? When are the two words interchangeable?

什么时候" will" 和" want" 意思一样呢？这两个词什么时候可以互换？

Ninu perfume is a so-called smart fragrance bottle containing three interchangeable vials that allow for a hundred different scent combinations.

Ninu 香水是一款智能香水瓶，内含三个可互换的小瓶，可以搭配100种不同的香味。

Concept Luna does away with all that, it has interlocking interchangeable parts, that make it easier to repair and recycle.

“概念露娜”取消了所有带互锁互换的部件，使其更容易维修和回收。