Chúng ta trao đổi váy rồi quyên góp áo sơ mi.

Chúng ta means we, but specifically we including the listener.

This is an important Vietnamese distinction:

• chúng ta = we, including the person being spoken to
• chúng tôi = we, excluding the person being spoken to

So if someone says Chúng ta trao đổi váy rồi quyên góp áo sơ mi, they are including the person they are talking to in the activity.

The basic structure is:

Subject + Verb + Object + rồi + Verb + Object

So here:

• Chúng ta = subject
• trao đổi = first verb
• váy = object of the first verb
• rồi = then / after that
• quyên góp = second verb
• áo sơ mi = object of the second verb

A very literal breakdown is:

We exchange skirts/dresses, then donate shirts.

Vietnamese word order here is fairly similar to English: the verb comes before the object.

In this sentence, trao đổi means to exchange or to swap.

This verb can be used in more than one way in Vietnamese. For example:

• trao đổi ý kiến = exchange opinions / discuss
• trao đổi quần áo = exchange clothes / swap clothes

So although trao đổi can sometimes mean discuss, in this sentence, because the object is váy, it clearly means exchange/swap.

Váy most commonly means skirt, but in some contexts learners may also see it translated more loosely depending on clothing context.

In everyday modern Vietnamese:

• váy usually = skirt
• áo sơ mi = shirt

So the most straightforward reading is probably swap skirts, then donate shirts.

If your provided meaning says dress instead, that is likely a context-based translation choice, but the core vocabulary item váy is usually understood as skirt.

Here, rồi means then, after that, or and then.

It connects two actions in sequence:

1. trao đổi váy
2. quyên góp áo sơ mi

So the sentence suggests:

We exchange skirts/dresses, and then donate shirts.

This is different from another common use of rồi, where it can mean already. For example:

• Tôi ăn rồi. = I already ate.

In your sentence, rồi is not marking already. It is linking actions in order.

Vietnamese does not always need a direct equivalent of English and.

In this sentence, rồi works as a connector meaning and then, which is actually more specific than just and. It tells you the second action follows the first one.

Compare:

• và = and
• rồi = then / and then / after that

So:

• trao đổi váy và quyên góp áo sơ mi = exchange skirts/dresses and donate shirts
• trao đổi váy rồi quyên góp áo sơ mi = exchange skirts/dresses, then donate shirts

The version with rồi emphasizes sequence.

Vietnamese does not use articles the way English does.

So nouns like váy and áo sơ mi can mean:

• a skirt / skirts / the skirt / the skirts
• a shirt / shirts / the shirt / the shirts

The exact meaning depends on context.

If Vietnamese speakers want to make the meaning more specific, they can add other words, for example:

• một cái váy = one skirt / a skirt
• những áo sơ mi = shirts
• các áo sơ mi = the shirts / shirts in general

But in many natural sentences, Vietnamese simply leaves this unstated.

Vietnamese nouns do not change form for singular or plural.

So:

• váy can mean skirt or skirts
• áo sơ mi can mean shirt or shirts

Plurality is usually understood from context, or shown with words such as:

• những
• các

For example:

• những váy = skirts
• các áo sơ mi = shirts

In your sentence, the nouns are left unmarked, which is very normal in Vietnamese.

Classifiers are common in Vietnamese, but they are not required in every sentence.

You often see classifiers when:

• counting things
• pointing out a specific item
• emphasizing the noun

For example:

• một cái váy = a skirt
• hai chiếc áo sơ mi = two shirts

But after many verbs, especially when talking generally about an action, Vietnamese often omits the classifier:

• trao đổi váy
• quyên góp áo sơ mi

That sounds natural and efficient.

Quyên góp means to donate, to contribute, or to give for charity/a cause.

It is more specific than a general verb like give.

For example:

• tặng = give as a gift
• cho = give
• quyên góp = donate / contribute for a cause

So quyên góp áo sơ mi means donate shirts, especially in a charitable or community-minded sense.

Yes. The sentence is grammatical as it stands, but Vietnamese often becomes more natural when context is added.

For example:

• Chúng ta trao đổi váy rồi quyên góp áo sơ mi cho từ thiện.
  = We exchange skirts/dresses and then donate shirts to charity.

• Chúng ta trao đổi váy trước, rồi quyên góp áo sơ mi sau.
  = We exchange skirts/dresses first, then donate shirts afterward.

Still, the original sentence is perfectly understandable and natural as a short standalone sentence.