Gọi món rồi ăn thử, thêm đá vào nước ép.

Gọi món means to order food / order a dish.

• gọi = to call, to ask for, to order
• món = dish, food item

Together, gọi món is a very common restaurant expression. It is more natural than translating word by word as call a dish.

Here, rồi means something like then, after that, or once that is done.

So:

• Gọi món rồi ăn thử = Order the dish, then try it

In this sentence, rồi is not mainly a past-tense marker. It is linking two actions in sequence.

A useful pattern is:

• X rồi Y = do X, then do Y

Vietnamese often leaves out the subject when it is obvious from context.

This sentence sounds like an instruction or a set of directions, so the subject is understood as something like:

• bạn = you
• or an implied you

So the full idea is something like:

• (Bạn) gọi món rồi ăn thử, thêm đá vào nước ép.

English usually needs a subject, but Vietnamese often does not.

Ăn thử means to try eating, to taste, or to try the food.

• ăn = eat
• thử = try

When thử comes after a verb, it often means try doing that action.

So:

• ăn thử = try eating it
• uống thử = try drinking it
• xem thử = try looking / check and see

In natural English, ăn thử is often best translated as taste it or try it, not literally eat try.

In Vietnamese, verb + thử is a very common pattern meaning try doing something.

So ăn thử sounds very natural.

• ăn thử = try eating it / taste it

Thử ăn can exist, but it often feels like the speaker is emphasizing the attempt itself, something closer to try to eat. In everyday Vietnamese, ăn thử is usually the more natural choice for taste it / try it.

Both can work, but they are slightly different.

• ăn thử = try eating it
• nếm thử = taste it

If you mean taking a small taste to check the flavor, nếm thử is often more precise. If you mean actually trying the dish as food, ăn thử is very natural.

So depending on context:

• Gọi món rồi nếm thử = order the dish, then taste it
• Gọi món rồi ăn thử = order the dish, then try eating it

This part means add ice to the juice.

Word by word:

• thêm = add
• đá = ice
• vào = into
• nước ép = juice

So the structure is:

• thêm + thing added + vào + destination

In this sentence:

• thêm đá vào nước ép = add ice into the juice

That is the normal Vietnamese word order here.

Vào means into or in(to). It shows where something is being put.

So:

• thêm đá vào nước ép = add ice into the juice

Without vào, the sentence could feel less clear or less complete. Vào helps mark the destination of the added item.

You will often see this pattern with actions of putting or adding:

• bỏ đường vào cà phê = put sugar into the coffee
• cho đá vào ly = put ice into the glass

Yes. Cho đá vào nước ép is also natural.

The difference is roughly:

• thêm đá vào nước ép = add ice to the juice
• cho đá vào nước ép = put ice into the juice

In many everyday situations, both are fine. Thêm emphasizes adding; cho emphasizes putting in.

It is best understood as a short instructional or imperative-style sentence.

It gives a sequence of actions:

1. Gọi món
2. rồi ăn thử
3. thêm đá vào nước ép

In English, we might naturally supply you or use command style:

• Order the dish, then try it, and add ice to the juice.

Vietnamese often presents instructions very compactly like this.

The comma separates related actions.

Here it helps break the sentence into two parts:

• Gọi món rồi ăn thử
• thêm đá vào nước ép

It makes the list of actions easier to read. Vietnamese punctuation in short instruction-like sentences can be somewhat flexible, so you may also see similar ideas written as separate clauses or separate sentences.

Vietnamese does not use articles the same way English does.

So:

• món can mean a dish, the dish, or just food item, depending on context
• nước ép can mean juice, the juice, or a juice

The listener understands the exact meaning from the situation, not from articles like a or the.

No. Rồi has several uses.

It can mean:

• already
• finished
• then / after that

In this sentence, it is the sequencing use:

• Gọi món rồi ăn thử = Order the dish, then try it

So you should not automatically read rồi as past tense every time.

It is understandable, but the naturalness depends on context.

Two things to note:

1. Gọi món rồi ăn thử is fine if someone is giving practical instructions.
2. If the idea is specifically taste the dish, many speakers might prefer nếm thử instead of ăn thử.

So a slightly more idiomatic version in some contexts could be:

• Gọi món rồi nếm thử, thêm đá vào nước ép.

But the original sentence is still understandable, and a learner should mainly focus on how the action sequence works.