После работы мы часто заказываем чай и чизкейк в кафе у метро.

Because после normally requires the genitive case, and работа in the genitive singular becomes работы.

• nominative: работа = work
• genitive: работы

So после работы literally means after work / after the work.

This is a very common pattern:

• после урока = after the lesson
• после фильма = after the film
• после обеда = after lunch

It usually means after work in the general everyday sense.

Russian has no articles, so the phrase does not directly distinguish between:

• after work
• after the work

In real life, context decides. In this sentence, the natural meaning is the routine one: after work.

Заказываем is the 1st person plural present tense form of заказывать.

That means:

• мы заказываем = we order
• more literally: we are ordering / we order

The ending -ем shows we.

So:

• я заказываю = I order
• ты заказываешь = you order
• мы заказываем = we order

Because this sentence describes a habitual / repeated action: we often order.

Russian uses the imperfective verb заказывать for repeated, regular, or ongoing actions.

• заказывать = imperfective, used for habits/processes
• заказать = perfective, used for a completed single order

So:

• Мы часто заказываем чай = We often order tea
• Мы заказали чай = We ordered tea
• Мы закажем чай = We will order tea

They are in the accusative case because they are the direct objects of заказываем: they are the things being ordered.

In this sentence:

• чай = tea
• чизкейк = cheesecake

Both are inanimate masculine nouns, and for many masculine inanimate nouns, the accusative singular looks the same as the nominative singular.

So:

• nominative: чай, чизкейк
• accusative: чай, чизкейк

That is why they do not visibly change here.

Yes. Чизкейк is a borrowing from English, but it behaves like a normal Russian noun.

It is usually treated as a masculine inanimate noun and can decline:

• nominative: чизкейк
• genitive: чизкейка
• dative: чизкейку
• instrumental: чизкейком

In your sentence, it is accusative singular, which matches the nominative because it is inanimate.

Yes, Russian could omit мы.

Because the verb form заказываем already shows we, the pronoun is often unnecessary:

• После работы часто заказываем чай... = perfectly possible in context
• После работы мы часто заказываем чай... = also correct

Including мы can make the sentence:

• clearer
• slightly more explicit
• a bit more neutral in textbook-style examples

So мы is not required, but it is completely natural.

Because that is a very natural position for an adverb of frequency in Russian.

• мы часто заказываем = we often order

Russian word order is fairly flexible, but this placement sounds neutral and standard.

Other orders are possible, with different emphasis:

• Мы часто заказываем чай и чизкейк... = neutral
• Мы заказываем часто чай и чизкейк... = less natural in this context
• Часто после работы мы заказываем... = stronger focus on often

So the given order is simply the most natural everyday one.

Because кафе is an indeclinable noun in Russian.

That means it keeps the same form in all cases:

• кафе
• в кафе
• из кафе
• около кафе

So even though в here means location and normally requires the prepositional case, кафе does not change its form.

Here у метро means by the metro, near the metro, or next to the metro station.

The preposition у often means at/by/near when talking about location:

• у дома = by the house
• у окна = by the window
• у метро = by the metro

So в кафе у метро means: in a cafe near the metro.

Good question. У does require the genitive case, but метро is also an indeclinable noun, so its form stays the same.

So grammatically it is genitive after у, but visually it still looks like метро.

This is similar to кафе:

• у метро
• в метро
• из метро

The form stays the same even though the case changes.

Yes, it is best understood as one location phrase:

• в кафе = in a cafe
• у метро = near the metro

Together:

• в кафе у метро = in a cafe near the metro

So у метро modifies кафе, not the verb directly. It tells you which cafe.

English does the same thing:

• in the cafe near the metro

Yes. Russian word order is flexible, and changing it usually changes emphasis, not the basic meaning.

The original sentence is neutral:

• После работы мы часто заказываем чай и чизкейк в кафе у метро.

Other possible versions:

• Мы часто заказываем чай и чизкейк в кафе у метро после работы.
• Чай и чизкейк мы часто заказываем после работы в кафе у метро.
• В кафе у метро мы часто заказываем чай и чизкейк после работы.

All of these are possible, but the original sounds the most natural and balanced for a simple statement.

Because Russian does not have articles like English a/an/the.

So:

• чай can mean tea / the tea
• чизкейк can mean a cheesecake / the cheesecake
• в кафе can mean in a cafe / in the cafe

Context tells you what sounds most natural in translation. In this sentence, English usually prefers:

• After work, we often order tea and cheesecake in a cafe near the metro. or
• After work, we often order tea and cheesecake at a cafe near the metro.

Because Russian often uses the singular for food and drink when speaking in a general or menu-like way.

So:

• заказать чай = to order tea
• заказать чизкейк = to order cheesecake / a cheesecake

This is very natural. English sometimes does something similar with uncountable nouns like tea, but Russian can also use singular with countable food items in this kind of ordering context.

If you wanted to be more specific about quantity, you could change it:

• два чизкейка = two cheesecakes
• чаи = teas, but only in special contexts, for example different kinds of tea or separate servings