Сестри не люблять сваритися через такі речі і зазвичай миряться того ж дня.

Сестри is the nominative plural form of сестра, so it means sisters.

Because the subject is plural, the verbs also have to be plural:

• люблять = they love / they like
• миряться = they make up / reconcile

If the subject were singular, you would say:

• Сестра не любить...
• ...і зазвичай мириться...

So this is basic subject-verb agreement.

After любити and many other verbs, Ukrainian often uses the infinitive to express liking or not liking an action.

So:

• любити читати = to like reading
• любити співати = to like singing
• не люблять сваритися = they do not like quarreling / to quarrel

This is very similar to English like doing or like to do.

Сваритися means to quarrel, argue, have a fight.

The ending -ся is a reflexive marker, but in many verbs it does not literally mean oneself. In this verb, it is simply part of the standard dictionary form.

With a plural subject like сестри, сваритися often has a reciprocal sense:

• Сестри сваряться = the sisters quarrel with each other

So here -ся helps form the normal verb сваритися, which commonly describes mutual arguing.

Here через means because of, over, or on account of.

So:

• сваритися через такі речі = to quarrel over such things

This is a very common use of через.

It also takes the accusative case. That is why we get:

• такі речі

Because речі is an inanimate plural noun, its accusative plural looks the same as the nominative plural.

Compare:

• такі речі = such things
• через такі речі = over such things

The noun річ means thing.

Its plural is:

• речі = things

The adjective такий has to agree with речі, so in the plural it becomes:

• такі = such

Together:

• такі речі = such things

After через, the phrase is in the accusative plural, but since речі is inanimate, the form stays the same as nominative plural.

Зазвичай means usually.

It shows that the sentence describes a habit or typical behavior, not a one-time event.

The placement here is natural:

• ...і зазвичай миряться того ж дня.

Ukrainian word order is flexible, so you could move зазвичай for slightly different emphasis:

• Сестри зазвичай не люблять сваритися...
• ...і миряться зазвичай того ж дня.

But the original version sounds neutral and natural.

Миритися here means to make peace, to reconcile, or to make up.

With a plural subject, Ukrainian often leaves with each other unstated because it is already clear from context:

• Сестри миряться = the sisters make up

If you wanted to be more explicit, you could say something like:

• миряться одна з одною
• миряться між собою

Also note that миритися can have another meaning in other contexts:

• миритися з чимось = to put up with something / accept something

But in this sentence, it clearly means reconcile.

Того ж дня means that same day or later the same day.

This is a common Ukrainian time expression. The word ж is a short unstressed particle, basically a reduced form of же. In this pattern, it adds the sense of same or that very.

So:

• того дня = that day
• того ж дня = that same day

You can think of ж here as adding emphasis: the very same day.

A similar English idea would be:

• on that very day
• the same day

The sentence describes something that happens habitually or typically, especially because of зазвичай.

For repeated, general, or ongoing actions, Ukrainian normally uses the imperfective aspect:

• сваритися = to quarrel, in a general/repeated sense
• миритися = to make up, in a general/repeated sense

Perfective forms like посваритися and помиритися are more about a completed event.

Compare:

• Сестри не люблять сваритися... і зазвичай миряться того ж дня.
  = general habit

• Сестри посварилися, але того ж дня помирилися.
  = one specific completed event

So the imperfective is the right choice here because the sentence is about what they are generally like.