En bona teamo la homoj respektas unu la alian kaj lernas unu de la alia.

En means in. So En bona teamo means In a good team.

This is a prepositional phrase that sets the scene for the whole sentence. Esperanto often puts this kind of phrase at the beginning, just like English can do:

• En bona teamo la homoj...
• In a good team, people...

Also notice:

• teamo = team
• bona = good

Because bona describes teamo, it takes the same ending: both are singular and not accusative.

Because this phrase comes after the preposition en, and here en already shows the relationship in. So there is no need for the accusative -n.

• bona teamo = in a good team
• bonan teamon would normally suggest motion into something if used after en, as in into a good team

Compare:

• Mi estas en bona teamo. = I am in a good team.
• Mi iris en bonan teamon. = I went into a good team.

In your sentence, there is no idea of movement, so bona teamo is correct.

La homoj literally means the people.

Esperanto often uses la when talking about a specific group already understood from the context. Here, the sentence is about the people in that good team, so la homoj means something like the people in the team.

If you said just homoj, it would sound more like people in general.

So:

• la homoj = the people (the people in that team)
• homoj = people, people in general

Respektas is the present tense form of the verb respekti (to respect).

Esperanto verb endings are very regular:

• -i = infinitive → respekti = to respect
• -as = present → respektas = respect / are respecting
• -is = past → respektis = respected
• -os = future → respektos = will respect

So la homoj respektas means the people respect.

The same pattern appears in lernas:

• lerni = to learn
• lernas = learn / are learning

Unu la alian means one another or each other.

This is a very common Esperanto way to express reciprocity. It shows that the action goes both ways among the people involved.

So:

• La homoj respektas unu la alian.
• The people respect one another.

It does not mean that one person respects only one other person. It is an idiomatic reciprocal expression.

This is because the grammar is different in the two parts.

1. respektas unu la alian

Here, alian has -n because it functions as the direct object of respektas.

• respekti iun = to respect someone
• so la alian is in the accusative

2. lernas unu de la alia

Here, the phrase uses the preposition de (from), and prepositions normally do not take -n.

• lerni de iu = to learn from someone
• so it is de la alia, not de la alian

So the difference is:

• direct object → alian
• after a preposition → alia

That is part of the standard reciprocal construction in Esperanto.

The usual patterns are:

• unu la alian = each other / one another
• unu de la alia = from each other
• unu al la alia = to each other
• unu kun la alia = with each other

The la is normally kept in these expressions. It is not optional in standard Esperanto.

So even though it may look unusual to an English speaker, unu la alian is the normal correct form.

Literally, unu ... alia is based on the idea one ... the other. Esperanto extends this into a regular pattern for reciprocal actions.

This is very useful because you can combine it with different prepositions depending on the meaning:

• unu la alian = each other
• unu de la alia = from each other
• unu al la alia = to each other
• unu pri la alia = about each other
• unu kun la alia = with each other

English uses a single expression, each other, for many of these ideas, but Esperanto makes the relationship clearer with grammar.

Because the verb lerni often uses de when you mean learn from someone.

Compare:

• Mi lernas la lingvon. = I am learning the language.
• Mi lernas de la instruisto. = I am learning from the teacher.

In your sentence, the meaning is they learn from one another, so Esperanto says:

• lernas unu de la alia

If you said lernas unu la alian, that would sound like learn one another, which does not make sense here.

It looks singular, but in meaning it is reciprocal and refers to multiple people.

That is why the verb is plural in sense even though Esperanto verbs themselves do not change for number:

• la homo respektas = the person respects
• la homoj respektas = the people respect

Then unu la alian tells us the action goes back and forth among those people.

So the phrase is built from singular-looking words, but it expresses a mutual relationship within a group.

In this reciprocal expression, Esperanto normally uses the singular form:

• unu la alian
• unu de la alia

Even when the subject is plural, this is still the standard pattern.

A learner might expect something like aliajn, but that is not how the usual reciprocal construction works. The fixed expression remains singular in form.

So you should learn these as set patterns:

• unu la alian
• unu de la alia
• unu al la alia
• etc.

Yes, Esperanto word order is fairly flexible, though some versions sound more natural than others.

For example, these are all understandable:

• En bona teamo la homoj respektas unu la alian kaj lernas unu de la alia.
• La homoj en bona teamo respektas unu la alian kaj lernas unu de la alia.

The original version sounds natural because it starts with the setting: In a good team...

However, inside the reciprocal expressions, you should keep the standard form:

• unu la alian
• unu de la alia

Those should not be freely rearranged.

Yes. The present tense -as in Esperanto is often used for general truths, habits, and typical situations, just like in English.

So this sentence can mean something like:

• In a good team, people respect each other and learn from each other.

It is not necessarily describing only one specific moment right now. It can describe how a good team normally works.