tizu wo yoku mireba, miti ga sugu wakarimasu.

見れば is the conditional form of 見る (to look / to see).

So:

• 見る = to look
• 見れば = if you look

In this sentence, it sets up a condition:

• 地図をよく見れば = if you look carefully at the map

This is the -eba conditional, which often sounds a little like if X, then Y.

を marks the direct object of the verb 見る.

Here, the thing being looked at is 地図 (map), so:

• 地図を見ます = look at the map

Even though English uses at in look at the map, Japanese simply uses を with 見る.

Because 道 is not the object of 分かります.

With 分かる, the thing that becomes clear or understandable is often marked with が.

So:

• 道が分かります = the way becomes clear / you understand the route / you can tell the way

This is a very common pattern:

• 日本語が分かります = I understand Japanese
• 意味が分かります = I understand the meaning
• 道が分かります = I understand the way / can tell the route

Even though English says understand something, Japanese often uses が分かる instead of an を object.

Here, よく means carefully, closely, or well, not often.

よく can have more than one meaning depending on context:

• よく行きます = go often
• よく見ます = look carefully / look closely

In this sentence, since it modifies 見る, it means:

• 地図をよく見れば = if you look carefully at the map

So this is not about frequency. It is about the quality of the looking.

すぐ means immediately, right away, or soon.

So:

• 道が分かります = you can understand the way
• 道がすぐ分かります = you can understand the way right away

It emphasizes that once you look carefully at the map, the route becomes clear quickly.

Because 分かる and 知る mean different things.

• 知る = to come to know / to learn a fact
• 分かる = to understand / to become clear

In this sentence, the idea is not you learn that a road exists. It is the route becomes clear to you. That is why 分かります is the natural choice.

For directions, maps, meanings, explanations, and languages, 分かる is very common.

It can literally mean road, but in this kind of sentence it often means the way, the route, or which way to go.

So 道が分かります can mean:

• you understand the route
• you can tell which way to go
• the way becomes clear

This is broader than just identifying a physical road.

Japanese often leaves out the subject when it is obvious from context.

In English, we usually need to say:

• If you look carefully at the map, you’ll understand the way right away.

In Japanese, the you is simply understood. The sentence sounds natural without saying it.

So the implied subject is something like:

• you
• someone
• a person

depending on context.

They are similar, and in many situations both can be translated as if you look.

• 見れば = conditional in -eba form
• 見たら = conditional in -tara form

In this sentence, both are possible:

• 地図をよく見れば、道がすぐ分かります。
• 地図をよく見たら、道がすぐ分かります。

Nuance-wise:

• -eba often sounds a bit more general, logical, or instructional
• -tara often sounds a bit more situational or conversational

So 見れば fits well in a statement like advice or a general observation: If you look carefully at the map, the way becomes clear.

Japanese often puts the condition first and the main result after it:

• 地図をよく見れば、道がすぐ分かります。
• If you look carefully at the map, you’ll understand the way right away.

This is a very common sentence pattern in Japanese:

• [condition] + [result]

You can sometimes reverse the order in Japanese, but putting the conditional clause first is very natural and easy to follow.

The comma separates the conditional clause from the main clause.

• 地図をよく見れば、 = if you look carefully at the map,
• 道がすぐ分かります。 = the way becomes clear right away.

Japanese commas are often used more flexibly than English commas, but here it helps show the pause between the two parts of the sentence.

Yes. It ends with 分かります, which is the polite non-past form of 分かる.

Compare:

• 分かる = plain
• 分かります = polite

So this sentence is appropriate in normal polite conversation, explanations, or textbook-style examples.

It needs to stay close to the verb it modifies, which is 見る.

Natural:

• 地図をよく見れば、道がすぐ分かります。

Less natural or different in meaning:

• putting よく near 分かります could make it sound like understand well/often, which is not the intended meaning here

So in this sentence, よく belongs with 見れば, because the idea is look carefully.

The pattern is:

• Noun を adverb verb-eba, Noun が adverb verb

Broken down:

• 地図を = the map
• よく = carefully
• 見れば = if you look
• 道が = the way / route
• すぐ = right away
• 分かります = becomes clear / is understandable

So the overall structure is:

• If you do X, Y happens.

This is a very useful pattern for giving advice, instructions, or general truths.