Bạn nhớ viết địa chỉ trên đơn hàng trước khi cửa hàng giao hàng.

Here nhớ means remember to do something.

So Bạn nhớ viết... means Remember to write...

A useful distinction:

• nhớ + noun/pronoun = miss / remember someone or something
  • Tôi nhớ mẹ. = I miss my mother.
• nhớ + verb = remember to do
  • Nhớ viết địa chỉ. = Remember to write the address.

So in this sentence, nhớ is not about memory in general; it is a reminder.

Vietnamese often puts verbs directly together without an extra word like English to.

So:

• nhớ viết = remember write = remember to write
• muốn ăn = want eat = want to eat
• cần đi = need go = need to go

This is very normal in Vietnamese. You do not need a separate word for the infinitive.

Địa chỉ means address.

In this sentence, it most naturally means a delivery address or mailing/shipping address. It usually refers to a physical address unless the context clearly says otherwise.

Examples:

• địa chỉ nhà = home address
• địa chỉ công ty = company address
• địa chỉ email = email address

By itself, địa chỉ usually means a physical address.

Đơn hàng literally means order, especially a commercial order for goods.

Depending on context, English might translate it as:

• order
• purchase order
• order form
• order sheet

In this sentence, because you write the address on it, English learners often understand it as something like the order form or the order details.

So trên đơn hàng is basically saying on the order / on the order form.

Because Vietnamese commonly uses trên for something written on a surface, document, form, page, or label.

So:

• viết trên giấy = write on paper
• ghi trên hóa đơn = write on the invoice
• trên đơn hàng = on the order / on the order form

If you used trong, it would literally suggest inside, which is less natural here. For forms and documents, trên is the usual choice.

Trước khi means before.

Pattern:

• A trước khi B = A before B

In this sentence:

• viết địa chỉ trên đơn hàng = write the address on the order
• trước khi cửa hàng giao hàng = before the store delivers

So the writing happens first, and the delivery happens later.

You can also move the trước khi clause to the front:

• Trước khi cửa hàng giao hàng, bạn nhớ viết địa chỉ trên đơn hàng.

That means the same thing.

Because hàng is a common word related to goods / merchandise.

But the two expressions are different fixed combinations:

• đơn hàng = order for goods
• giao hàng = deliver goods / make a delivery

So yes, it is the same word, but it forms two different common phrases.

This kind of repetition is very normal in Vietnamese.

Yes, here it means the store delivers.

Vietnamese usually follows subject + verb order:

• cửa hàng = the store
• giao hàng = delivers / makes the delivery

So cửa hàng giao hàng = the store delivers

If you wanted deliver to the store, you would normally need something like:

• giao hàng cho cửa hàng = deliver goods to the store
• giao đến cửa hàng = deliver to the store

So the sentence as written clearly makes cửa hàng the doer of the action.

Yes, but it sounds more like a reminder than a strong command.

• Bạn nhớ viết... = Remember to write...
• Hãy viết... = Write... / Please write...

Using nhớ makes it sound more natural, conversational, and a bit softer. It is very common in instructions and reminders.

So this sentence is not harsh; it is more like friendly practical guidance.

Vietnamese often leaves tense unstated when the time is already clear from context.

Here, the timing is understood from:

• nhớ = a reminder about a future action
• trước khi = before
• cửa hàng giao hàng = the delivery event

So even without sẽ (will), the meaning is clear: this is about something that should happen before a future delivery.

You could add sẽ in some contexts:

• trước khi cửa hàng sẽ giao hàng

But that is usually unnecessary, and in many cases less natural. Vietnamese often prefers to leave it unmarked if the sequence is obvious.

Yes, very often.

You could simply say:

• Nhớ viết địa chỉ trên đơn hàng trước khi cửa hàng giao hàng.

That still means Remember to write the address on the order before the store delivers.

Including bạn makes the sentence explicitly directed at you. Omitting it can sound more like a general instruction or reminder. Both are natural, depending on context.