Повтори эту фразу ещё раз, пожалуйста.

Повтори is the imperative form of повторить, which means to repeat in the perfective aspect.

In this sentence, it means Repeat!

The perfective aspect is used because the speaker wants one complete action: repeat the phrase one time.

Compare:

• повтори = repeat it once / say it again
• повторяй = keep repeating / repeat repeatedly

So Повтори эту фразу ещё раз, пожалуйста. sounds natural for asking someone to say the phrase again once.

Повтори is the informal singular imperative, used when speaking to:

• one friend
• one child
• one person you address with ты

If you want to be polite or you are speaking to:

• a stranger
• a teacher
• an older person
• more than one person

you would normally say:

• Повторите эту фразу ещё раз, пожалуйста.

So the difference is mostly:

• повтори = informal, one person
• повторите = polite singular or plural

Because эту фразу is the direct object of the verb повтори.

The noun фраза is:

• feminine
• singular

For feminine nouns ending in -а, the demonstrative эта changes to эту in the accusative singular.

So:

• эта фраза = this phrase as the subject
• повтори эту фразу = repeat this phrase as the object

For the same reason: фраза is the direct object, so it must be in the accusative case.

Since фраза is a feminine noun ending in -а, its accusative singular form is фразу.

So:

• nominative: фраза
• accusative: фразу

This is a very common pattern:

• книга → книгу
• машина → машину
• фраза → фразу

Ещё раз literally means one more time.

In this sentence, it works like again or once more:

• Повтори ещё раз = Repeat one more time
• Скажи ещё раз = Say it again

This is one of the most common ways to ask for repetition in Russian.

Yes, but ещё раз is more natural in this kind of request.

Compare:

• Повтори эту фразу ещё раз, пожалуйста. = very natural for repeat it one more time
• Повтори эту фразу снова. = also possible, but sounds a bit more like repeat it again in a broader sense

In everyday speech, when asking someone to say something again, ещё раз is extremely common.

Russian usually does not need a separate subject pronoun when the verb form already shows who is being addressed.

Here, повтори already means you repeat! in the imperative singular.

So Russian often says simply:

• Повтори... = Repeat...

If you add ты, it usually adds emphasis, contrast, or emotion:

• Ты повтори ещё раз. = You repeat it again.

But in a normal polite request, the pronoun is usually omitted.

Пожалуйста means please, and in Russian it is very flexible in position.

It can go:

• at the end: Повтори эту фразу ещё раз, пожалуйста.
• at the beginning: Пожалуйста, повтори эту фразу ещё раз.
• sometimes in the middle

Putting it at the end is very natural and common in requests.

It softens the command and makes it sound polite.

Yes. Russian word order is more flexible than English word order.

The basic version here is:

• Повтори эту фразу ещё раз, пожалуйста.

But you may also hear:

• Пожалуйста, повтори эту фразу ещё раз.
• Эту фразу повтори ещё раз, пожалуйста.

These all mean basically the same thing, but the emphasis changes slightly.

For example:

• Эту фразу first can emphasize this phrase
• Пожалуйста first can make the request sound especially polite

Still, the original order is very natural and neutral.

Grammatically, it is an imperative, so it is command-like in form.

But because it includes пожалуйста, it functions as a polite request:

• without пожалуйста: more direct
• with пожалуйста: softer and more polite

So in real use, this sounds more like:

• Please repeat this phrase one more time

rather than a harsh order.

The main stress is:

• повтори́
• э́ту
• фра́зу
• ещё
• раз
• пожа́луйста

A helpful pronunciation guide is:

• pahf-tah-REE EH-too FRA-zoo ee-SHCHO raz pa-ZHA-luy-sta

A few useful notes:

• ё in ещё is always pronounced yo
• unstressed о often sounds closer to a in real speech
• пожалуйста is often pronounced a bit quickly in conversation

Here are the main forms:

• повтори → dictionary form: повторить = to repeat
• эту → dictionary form: этот / эта / это = this
• фразу → dictionary form: фраза = phrase
• ещё = still / yet / more
• раз = time in the sense of occurrence
• пожалуйста = please / you’re welcome depending on context

So the sentence is built from very common and useful words.