tā měitiān wǎnshang dōu huì zhěnglǐ zhuōzi, suǒyǐ fángjiān bú tài luàn.

A simple breakdown is:

• 她 = she
• 每天晚上 = every evening
• 都 = all / in every case → here, every time
• 会 = will / tends to / habitually does
• 整理桌子 = tidy up the table/desk
• 所以 = so / therefore
• 房间不太乱 = the room is not too messy

So the structure is roughly:

Subject + time + 都 + 会 + verb phrase, 所以 + result

In more natural English order:

She tidies the table/desk every evening, so the room is not too messy.

Because they work together to mean every evening.

• 每天 = every day
• 晚上 = evening / at night

So:

• 每天晚上 = every evening / every night

This is very common in Chinese: a frequency word plus a time of day.

Other examples:

• 每天早上 = every morning
• 每天下午 = every afternoon
• 每天中午 = every noon

So 每天晚上 is more specific than just 每天.

Yes, 都 often means all, but in this sentence it works with 每天晚上 to give the sense of every time / in every case.

So:

• 她每天晚上都会整理桌子 = Every evening, she will/tends to tidy the table

Here, 都 strengthens the idea of regularity.

A useful pattern is:

• 每...都... = every..., all...

Examples:

• 我每天都学习。 = I study every day.
• 他每次都迟到。 = He is late every time.

So in your sentence, 都 is very natural because 每天晚上 already sets up a repeated situation.

In this sentence, 会 is best understood as expressing a habitual action or something someone tends to do.

So:

• 她每天晚上都会整理桌子 does not mainly mean she knows how to tidy the table and it does not mainly mean a one-time future will

Instead, it means something like:

• she will regularly tidy the table every evening
• she tends to tidy the table every evening

In Mandarin, 会 can have several meanings:

• ability learned: 我会开车。 = I can drive.
• future/likely action: 明天会下雨。 = It will rain tomorrow.
• habit/tendency in context: 她每天晚上都会整理桌子。

Here the surrounding words 每天晚上 make the habitual meaning clear.

Yes, but the nuance changes a little.

1. Without 都

• 她每天晚上会整理桌子。

This is still understandable and natural. It means she habitually tidies the table in the evening. But it is a bit less emphatic than the version with 都.

2. Without 会

• 她每天晚上都整理桌子。

This is also natural. It sounds even more like a plain statement of repeated fact: she tidies the table every evening.

3. Without both

• 她每天晚上整理桌子。

Also possible, but slightly more neutral and less explicitly habitual.

So the original sentence with 都 + 会 gives a strong feeling of regular routine.

Chinese usually places time expressions before the verb.

So:

• 她 每天晚上 都会 整理桌子
• literally: She every evening always/will tidy the table

A common order is:

Subject + time + adverb + modal verb + main verb

Here:

• 她 = subject
• 每天晚上 = time
• 都 = adverb
• 会 = modal verb
• 整理 = main verb

This order is very typical in Mandarin.

Not exactly.

整理 means to put in order, organize, sort out, or tidy up.

So 整理桌子 suggests:

• arranging things on the table/desk
• putting items back in place
• making it neat

It does not necessarily mean washing or scrubbing.

Compare:

• 整理 = tidy up / organize
• 打扫 = sweep / clean
• 清理 = clear away / clean out
• 收拾 = put away / tidy up

So 整理桌子 is closer to tidy the desk/table than to clean the table.

It can mean either, depending on context.

• 桌子 = table / desk
• 书桌 = desk, especially a study desk
• 餐桌 = dining table

In this sentence, 桌子 could be:

• a desk in her room
• a table in the room

Because the next clause says 所以房间不太乱 (so the room is not too messy), many learners might imagine a desk or table inside the room. Both are possible unless more context is given.

Because Chinese often omits possessives when the owner is obvious from context.

Since the sentence is talking about her routine and the result is about the room, it is very natural to understand this as her room or the room in question.

So:

• 所以房间不太乱 = so the room is not too messy

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

• 所以她的房间不太乱。 = so her room is not too messy

Both are fine. The original is simply more concise.

Because 不太 + adjective is a very common way to soften a statement.

• 乱 = messy
• 不乱 = not messy
• 不太乱 = not too messy / not very messy

This sounds more natural and less absolute.

Compare:

• 房间不乱。 = The room is not messy.
• 房间不太乱。 = The room is not too messy / not very messy.

The second one is softer and often more realistic in everyday speech.

Because the sentence is making a negative description, and 不太乱 is the natural way to do that.

Some key points:

1. 很乱 means very messy

That would give the opposite meaning.

2. 很不乱 is not natural

Chinese usually does not say very not messy in that way.

3. 不太乱 is the normal idiomatic pattern

It means:

• not too messy
• not very messy

This is a very useful pattern:

• 不太忙 = not too busy
• 不太贵 = not too expensive
• 不太大 = not too big

So 房间不太乱 is a very standard and natural phrase.

This is because of tone sandhi.

Normally:

• 不 is fourth tone: bù

But when 不 comes before another fourth-tone syllable, it changes to second tone in pronunciation:

• 不太 → bú tài

Since 太 is fourth tone, 不 becomes bú.

Other examples:

• 不是 → bú shì
• 不要 → bú yào
• 不对 → bú duì

So the pinyin bú in 不太乱 is showing the actual pronunciation.

所以 means so or therefore. It introduces the result.

So the logic is:

• She tidies the table every evening
• therefore the room is not too messy

In Chinese, 所以 is often used just like English so:

• 他很努力，所以进步很快。 = He works hard, so he improves quickly.

Is it necessary? Not always.

You could also say:

• 她每天晚上都会整理桌子，房间不太乱。

That is understandable, but 所以 makes the cause-and-effect relationship clearer.

It is mainly talking about a habit.

The clues are:

• 每天晚上 = every evening
• 都 = every time / consistently
• 会 = here, habitual tendency

So the sentence describes something she does regularly, not just something she will do one time later.

If it were a one-time future action, you would usually need more specific time context, such as:

• 她今天晚上会整理桌子。 = She will tidy the table tonight.

But with 每天晚上, it clearly sounds habitual.

Yes. 晚上 can cover both evening and night, depending on context.

So 每天晚上 might be translated as:

• every evening
• every night

Both can be correct. English chooses one based on what sounds most natural in the situation.

In this sentence, every evening often sounds a bit smoother, but every night is also possible.