kono heya ha syousyou samui desu kara, mado wo simete mo ii desu ka.

は is the topic marker. It marks この部屋 as the thing the speaker is talking about: as for this room.

So:

• この部屋は = as for this room / this room
• 少々寒いです = is a little cold

A very literal breakdown is:

• この部屋は = As for this room,
• 少々寒いですから = because it is a little cold,
• 窓を閉めてもいいですか = is it okay if I close the window?

Japanese often sets up the topic first and then comments on it.

少々 means a little, a bit, or somewhat. In this sentence, it softens 寒い:

• 少々寒い = a little cold

Compared with 少し, 少々 sounds a bit more formal or polite. In everyday casual speech, many people would say:

• 少し寒いですから…

So the meaning is basically the same here, but 少々 gives a slightly more polite tone.

寒い is an i-adjective, and i-adjectives can be used directly as predicates:

• 寒い。 = It’s cold.

Adding です makes it more polite:

• 寒いです。 = It’s cold. (polite)

So:

• 少々寒いです = It’s a little cold.

This is normal Japanese. You do not change 寒い into something like 寒です. The adjective itself stays 寒い, and です adds politeness.

Here, から means because.

So:

• 少々寒いですから = because it’s a little cold

It gives the reason for what comes next. The full sentence is basically:

• Because this room is a little cold, is it okay if I close the window?

In natural English, we often translate it more smoothly as:

• It’s a little cold in this room, so may I close the window?

Japanese often puts the reason before the main request or conclusion.

So the structure is:

• [reason] から、[request/question]
• Because [reason], [request/question].

That is very natural in Japanese. In English, we can do both:

• Because it’s cold, may I close the window?
• It’s cold, so may I close the window?

Japanese commonly prefers the reason first in sentences like this.

を marks the direct object of the verb.

• 窓 = window
• 窓を = the window as the thing being acted on
• 閉める = to close

So:

• 窓を閉める = to close the window

Even though English uses articles like the or a, Japanese does not. So 窓 can mean the window, a window, or just window, depending on context.

閉めて is the te-form of 閉める.

The te-form has many uses in Japanese. Here, it is used in the pattern:

• V-て + もいいですか

This pattern means:

• May I do V?
• Is it okay if I do V?

So:

• 閉める = to close
• 閉めて = te-form
• 閉めてもいいですか = May I close it? / Is it okay if I close it?

〜てもいいですか is a very common pattern for asking permission.

Structure:

• verb in te-form + もいいですか

Meaning:

• May I ... ?
• Is it okay if I ... ?
• Would it be alright if I ... ?

So:

• 窓を閉めてもいいですか = May I close the window?

This is a polite and standard way to ask permission.

Not in this sentence.

Although も often means also or too, in the grammar pattern 〜てもいい, it is part of a fixed expression and does not simply mean also.

So you should learn 〜てもいいですか as a whole pattern meaning:

• May I ... ?
• Is it okay if ... ?

Trying to translate each piece literally can be confusing here.

か marks the sentence as a question in polite Japanese.

So:

• 閉めてもいいです = It is okay to close it
• 閉めてもいいですか = Is it okay to close it? / May I close it?

In modern casual conversation, people sometimes ask questions without か, using intonation instead. But in polite textbook-style Japanese, か is the normal question marker.

It is asking for permission.

The speaker is saying that the room is a little cold and then asking:

• May I close the window?

If the speaker wanted to make more of a suggestion like Shall we close the window?, Japanese would usually use a different expression, such as:

• 窓を閉めましょうか。 = Shall I close the window? / Shall we close the window?

So 閉めてもいいですか is specifically about whether it is acceptable for the speaker to do it.

Japanese word order works differently from English.

The sentence is organized like this:

• この部屋は = topic
• 少々寒いです = comment about the topic
• から = because
• 窓を閉めてもいいですか = permission question

Japanese often builds sentences in pieces and places the main verb or main question near the end. English usually prefers a more straightforward subject-verb order, but Japanese often delays the main action until later.

No, it sounds polite enough, especially because of:

• 少々 instead of a rougher expression
• です
• 〜てもいいですか

Overall, it sounds like a polite reason plus a polite permission request.

That said, in a real conversation, someone might sound even softer by saying something like:

• この部屋、少し寒いですね。窓を閉めてもいいですか。

That feels a bit more conversational. But the original sentence is perfectly fine and polite.

No. Standard Japanese is normally written without spaces.

So this sentence would usually be written as:

この部屋は少々寒いですから、窓を閉めてもいいですか。

Spaces are often added only in beginner materials to make it easier to read.

Yes. In natural English, Can I close the window? is a very common translation, even though can literally refers to ability.

In everyday English, can I...? often functions as a permission question. Still, 〜てもいいですか is closer in meaning to:

• May I close the window?
• Would it be okay if I close the window?

So if you want the nuance to match more closely, May I close the window? or Is it okay if I close the window? is a better fit.

Using この部屋は makes this room the topic: as for this room...

If you used が, the nuance would be different. が often marks the grammatical subject more directly and can sound more like identifying or emphasizing the subject.

For a basic sentence like this, この部屋は少々寒いです is the most natural way to say:

• This room is a little cold.

It presents this room as the topic and then gives information about it.