Hãy chụp ảnh hiện trường thay vì cất tài sản.

Hãy is a marker used to make a polite or formal command / instruction. It is often similar to please, do, or an instructional imperative in English.

So Hãy chụp ảnh... means something like:

• Take photos...
• Please take photos...
• Do take photos...

It is common in written instructions, warnings, official notices, and careful advice. In everyday conversation, speakers often leave hãy out and just say the verb directly.

Vietnamese often leaves out the subject when it is obvious from context, especially in:

• commands
• instructions
• notices
• advice

So Hãy chụp ảnh hiện trường... naturally means (You) take photos of the scene...

Adding bạn is possible, but it often feels more explicit than necessary:

• Hãy chụp ảnh hiện trường... → natural instruction
• Bạn hãy chụp ảnh hiện trường... → more directly addressed to a specific person

It is a verb + noun combination:

• chụp = to take / capture
• ảnh = photo, photograph

Together, chụp ảnh means to take photos.

This is very common in Vietnamese: a verb combines with a noun to create a natural action phrase. Here, the noun ảnh stays in the phrase even though English usually just says take a photo or photograph.

A close alternative is chụp hình, which also means take pictures. In many contexts, ảnh and hình are both possible, though ảnh is a bit more directly tied to photographs.

Hiện trường means the scene, especially the physical location where something happened.

It is often used in somewhat formal or official contexts, such as:

• an accident scene
• a crime scene
• the site of an incident
• the scene of damage or loss

So in this sentence, chụp ảnh hiện trường means take photos of the scene for documentation.

This expression sounds more formal than a simple everyday word like chỗ đó or nơi đó.

Vietnamese word order here is very natural:

• chụp ảnh = take photos
• hiện trường = the scene

So chụp ảnh hiện trường literally works like take photos [of] the scene.

Vietnamese often does not need a separate word for of in this kind of structure. The relationship is understood from context.

You can think of it as:

• chụp ảnh + hiện trường
• take photos + of the scene

So hiện trường tells you what the photos are of.

Thay vì means instead of.

It introduces the action that should not be done, or the action that is being contrasted with the recommended one.

Structure:

• A thay vì B = do A instead of B

In this sentence:

• Hãy chụp ảnh hiện trường thay vì cất tài sản.
• Take photos of the scene instead of putting away the property/assets.

So the speaker is telling the listener that taking photos is the preferred action, and cất tài sản is the action not to do first.

Here cất means something like:

• put away
• store
• put in a safe place

It usually suggests moving something somewhere for keeping.

This is different from:

• giữ = keep, hold, retain
• giấu = hide

So cất tài sản is not necessarily hide the property. It more likely means put the property away / store it / remove it from where it is.

That matters in this sentence, because the instruction suggests: document the scene first, rather than immediately moving the property.

Tài sản means property, assets, or belongings, depending on context.

It is often a fairly broad term. In Vietnamese, nouns often do not have to show singular/plural clearly the way English does. So tài sản could refer to:

• one item of property
• several items
• property in a general sense

The exact number is usually understood from context.

That is why the sentence does not need a separate plural marker. English may need property, belongings, or assets depending on the situation, but Vietnamese can simply say tài sản.

Because cất tài sản is not being given as a second command. It is the action introduced by thay vì.

The structure is:

• Hãy
  • recommended action
• thay vì
  • contrasting action

So the sentence means:

• Do X instead of Y

not

• Do X, and do Y

If you added hãy before cất tài sản, it would sound confusing, because it would suggest both actions are being commanded.

It sounds fairly formal or instructional.

Reasons:

• hãy gives it an instructional tone
• hiện trường is a formal word
• tài sản is also somewhat formal or official

This kind of sentence would fit well in:

• official guidance
• insurance instructions
• police or safety advice
• written procedures

In casual speech, someone might say something less formal, such as a version with nhớ or without hãy. But the sentence as written is natural for a formal instruction.

Yes. Vietnamese often does not mark singular vs. plural unless needed.

So chụp ảnh hiện trường can mean:

• take a photo of the scene
• take photos of the scene

In practical context, it often suggests take photos in general, especially for documentation. If the speaker wanted to be very explicit about multiple photos, they could say something like chụp nhiều ảnh, but it is not necessary here.

A helpful way to see it is:

• Hãy
  • verb phrase A
    • thay vì
      • verb phrase B

In this sentence:

• Hãy
• chụp ảnh hiện trường
• thay vì
• cất tài sản

So the pattern is:

• Please / Do + A instead of B

This is a very useful pattern in Vietnamese for giving instructions and advice.