היא אוהבת את האביב יותר מהחורף, כי באביב לא חם מדי ולא קר מדי.

Because the subject is היא (she). In Hebrew, verbs in the present tense agree with the subject in gender and number.

• הוא אוהב = he loves / likes
• היא אוהבת = she loves / likes

So אוהבת is the feminine singular form.

את marks a definite direct object in Hebrew.

In this sentence, האביב (the spring) is the thing she likes, and it is definite because it has ה־ (the). So Hebrew normally uses את before it:

• היא אוהבת את האביב
• literally: She likes [direct object marker] the spring

A native English speaker often wants to translate את, but it usually has no direct English equivalent. It is a grammatical marker, not a word with a separate meaning here.

The prefix ה־ is the Hebrew definite article, meaning the.

So:

• אביב = spring
• האביב = the spring
• חורף = winter
• החורף = the winter

In this sentence, Hebrew uses the definite forms because it is talking about the seasons in a general, known sense: spring and winter as categories.

יותר means more, and מ־ means than / from in comparisons.

So:

• יותר מהחורף = more than the winter

This is a very common Hebrew comparison pattern:

• יותר מ... = more than...
• פחות מ... = less than...

Examples:

• אני אוהב תה יותר מקפה = I like tea more than coffee
• היום חם יותר מאתמול = Today is warmer than yesterday

Here, מ־ is attached directly to החורף.

Because Hebrew often attaches short prepositions directly to the following word.

The preposition מ־ (from / than) joins the noun:

• מ + החורף → מהחורף

This is normal Hebrew spelling. The same thing happens with other short prepositions too, such as ב־ (in) and ל־ (to / for).

Because ב־ is a prefix meaning in / at / during, and Hebrew usually attaches it directly to the noun.

• ב + אביב → באביב

So באביב means in spring or in the spring.

This is very common:

• בקיץ = in summer
• בחורף = in winter
• בבית = in the house / at home depending on context

In present-tense Hebrew, the verb to be is usually omitted.

So Hebrew says literally:

• לא חם מדי = not too hot
• לא קר מדי = not too cold

There is no separate present-tense word like English is/are here.

This is a very important Hebrew pattern:

• הוא עייף = He is tired
• היא בבית = She is at home
• היום חם = Today is hot

מדי means too in the sense of excessively.

So:

• חם מדי = too hot
• קר מדי = too cold

In Hebrew, מדי usually comes after the adjective, unlike English, where too comes before it.

Compare:

• English: too hot
• Hebrew: חם מדי

That word order is normal and very common.

Hebrew often repeats לא in this kind of neither... nor... structure.

So:

• לא חם מדי ולא קר מדי
• literally: not too hot and not too cold
• natural English: neither too hot nor too cold

This repetition is the normal way to express that balance in Hebrew.

כי means because.

It introduces the reason:

• היא אוהבת את האביב יותר מהחורף
• כי באביב לא חם מדי ולא קר מדי

So the structure is:

• statement + כי
  • reason

This is a very common connector in Hebrew.

Because the two words play different grammatical roles.

• את האביב = the spring as the direct object of likes
• באביב = in spring as a time expression

So even though both contain אביב, they mean different things in the sentence:

• first: what she likes
• second: when the weather is pleasant

This is a good example of how prefixes and particles change the function of a noun in Hebrew.

That would sound different. היא אוהבת את האביב refers to the spring in a definite, general sense.

If you removed both:

• היא אוהבת אביב

that would sound unnatural in this context to most learners, because Hebrew normally treats the season here as definite and uses את with a definite direct object.

So היא אוהבת את האביב is the standard phrasing.

The sentence is built like this:

• היא = subject
• אוהבת = verb
• את האביב = direct object
• יותר מהחורף = comparison
• כי = because
• באביב = time phrase
• לא חם מדי ולא קר מדי = description of the weather

So the overall structure is roughly:

She likes the spring more than the winter, because in spring it is neither too hot nor too cold.

Hebrew word order is often flexible, but this order is very natural and clear.