zhōumò wǒ xiǎng xiān shōushi fángjiān, zài qù chāoshì mǎi dōngxi.

Yes. 周末 means weekend, and at the start of a sentence it often works like a time phrase: on the weekend / this weekend / during the weekend.

In Mandarin, time words very often come before the main verb, and often near the beginning of the sentence:

周末，我想先收拾房间，再去超市买东西。
= On the weekend, I want to first tidy my room, then go to the supermarket to buy things.

Chinese does not need a preposition like on here.

Mandarin usually puts time expressions before the verb phrase, and often before the subject as well.

A very common pattern is:

Time + Subject + Verb

So:

周末 我 想...
is very natural.

You can also say:

我周末想先收拾房间，再去超市买东西。

That is also natural. Both are correct. Putting 周末 first gives it a little more emphasis as the topic or setting.

In this sentence, 想 most naturally means want to or am thinking of.

So 我想先收拾房间，再去超市买东西 means something like:

• I want to first tidy my room, then go to the supermarket to buy things.
• I’m thinking of first tidying my room, then going to the supermarket.

想 can have slightly different meanings depending on context:

• 想 + verb = want to / would like to
• 想 by itself can also mean think
• 想念 means miss someone

Here it is clearly the want to / plan to meaning.

先...再... is a very common pattern meaning:

• first..., then...
• do A first, and after that do B

In your sentence:

• 先收拾房间 = first tidy the room
• 再去超市买东西 = then go to the supermarket to buy things

So the structure is:

先 + action 1， 再 + action 2

This pattern is extremely useful in everyday Mandarin.

Examples:

• 我先吃饭，再工作。
  I’ll eat first, then work.

• 你先坐下，再说。
  Sit down first, then speak.

You do not always have to use both, but using both makes the sequence especially clear.

• 先收拾房间，再去超市买东西。
  Very clear: first... then...

You could also say:

• 我想收拾房间，再去超市买东西。
  Still understandable, but slightly less explicit about the first part.

Or:

• 我想先收拾房间，然后去超市买东西。
  Also natural. 然后 means then / after that.

So 先...再... is a neat, common pair for expressing order.

收拾房间 usually means tidy up the room, straighten up the room, or put the room in order.

收拾 is broader than just clean. It can include:

• putting things away
• organizing
• straightening
• making the room neat

If you want to emphasize cleaning more specifically, you might also hear:

• 打扫房间 = clean the room

So:

• 收拾房间 = tidy up / straighten up the room
• 打扫房间 = clean the room

In everyday speech, 收拾房间 is very natural if the idea is getting the room into order.

This is a normal and important feature of Mandarin. Chinese often uses verb sequences without extra words like English uses.

Here:

• 去超市 = go to the supermarket
• 买东西 = buy things

Together:

去超市买东西
= go to the supermarket to buy things

Chinese does not need a separate word like to before buy. The relationship is understood from the verb sequence.

This kind of structure is very common:

• 去学校上课 = go to school to attend class
• 来我家吃饭 = come to my house to eat
• 出去买咖啡 = go out to buy coffee

Mandarin does not use articles like a, an, and the the way English does.

So:

• 房间 can mean room / the room / a room, depending on context
• 超市 can mean supermarket / the supermarket, depending on context

In this sentence, English would naturally say the room and the supermarket, but Chinese simply says 房间 and 超市.

Context tells you which one is meant.

东西 literally means things / stuff.

In the sentence:

去超市买东西
it means something like:

• go shopping
• go buy some things
• go buy groceries / supplies

It is intentionally general. The speaker does not specify exactly what they are buying.

This is a very common everyday expression:

• 买东西 = buy things / shop
• 去商店买东西 = go to the store to buy things

Also note that 东西 is pronounced dōngxi, with the second syllable often in a neutral tone.

Yes, absolutely. That is a very natural sentence too.

Compare:

• 周末，我想先收拾房间，再去超市买东西。
• 我周末想先收拾房间，再去超市买东西。

Both are correct.

The difference is mostly about focus:

• 周末 first: emphasizes the time
• 我 first: sounds a little more like a plain statement about what I want to do

Mandarin often allows this kind of flexibility, especially with time expressions.

The comma helps separate the two main actions:

• 先收拾房间
• 再去超市买东西

It makes the sequence easier to read and reflects a natural pause.

In Chinese, commas are often used a bit more freely than in English, especially to separate:

• time phrases
• topic phrases
• long verb phrases
• step-by-step actions

So the comma here is very natural.

Yes. Both words are commonly pronounced with a neutral tone on the second syllable:

• 收拾 = shōushi
• 东西 = dōngxi

So although you may sometimes see full tone markings in dictionary-style explanations, in normal speech the second syllable is usually light and unstressed.

This is very common in everyday Mandarin for two-syllable words where the second syllable is weak.

Yes, but the meaning changes a little.

• 想 = want to / am thinking of
• 要 = am going to / want to / will

Compare:

• 我想先收拾房间，再去超市买东西。
  I want / I’m thinking of first tidying my room, then going shopping.

• 我要先收拾房间，再去超市买东西。
  This can sound stronger, more definite, or more like I’m going to.

So 想 sounds a bit softer and more like a plan in the speaker’s mind, while 要 can sound firmer.

By itself, 周末 can sometimes mean either:

• this weekend
• on the weekend / at the weekend
• weekends in a general sense

Context decides.

In this sentence, because it describes a plan with 我想 and a sequence of actions, many learners would naturally understand it as this weekend.

If you want to make it clearly this weekend, you could say:

• 这个周末，我想先收拾房间，再去超市买东西。

If you want to talk about a habit, you would usually add more context, such as:

• 周末我常常先收拾房间，再去超市买东西。
  On weekends I often first tidy my room, then go to the supermarket to shop.