chúfēi shēnfènzhèngmíng hé shēnqǐngcáiliào qíquán, fǒuzé bùnéng tíjiāo.

It means unless..., otherwise...

So the structure is:

• 除非 + condition
• 否则 + result if that condition is not met

In this sentence:

• 除非身份证明和申请材料齐全 = Unless the identity documents and application materials are complete
• 否则不能提交 = otherwise, it cannot be submitted / you cannot submit it

This is a very common formal pattern in Chinese.

Sometimes one is enough, but using both makes the logic extra clear.

• 除非 A，否则 B = Unless A, otherwise B

This is a standard paired structure in Chinese, especially in formal instructions, rules, and notices.

You could also hear:

• 除非身份证明和申请材料齐全，不能提交。

But 否则 makes the second clause sound more explicit and natural in formal writing.

Because 齐全 works like a predicate adjective here, meaning complete or all present.

Chinese often uses adjectives directly as predicates, without needing a word like are.

So:

• 身份证明和申请材料齐全 literally: identity documents and application materials complete naturally: the identity documents and application materials are complete

This is normal Chinese sentence structure.

They are similar, but not identical.

• 齐全 means all required items are present; nothing is missing
• 完整 means whole, intact, not broken or incomplete

In an application context, 齐全 is especially common because it focuses on whether all the required documents have been provided.

For example:

• 材料齐全 = all required materials are there
• 手续齐全 = all required procedures/documents are in order

So 齐全 is the better word here.

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

In a notice or instruction, the implied subject is often:

• you
• the applicant
• or sometimes the application

So 不能提交 could mean:

• you cannot submit it
• or it cannot be submitted

Chinese allows this kind of omission much more freely than English does.

The object is omitted because it is understood from context.

Depending on the situation, 提交 could mean submitting:

• an application
• documents
• a form
• materials online

So 不能提交 means something like:

• cannot be submitted
• you cannot submit it
• submission is not allowed

In formal Chinese, if the object is obvious, it is often left unstated.

No, not exactly.

• 身份证 = an ID card specifically
• 身份证明 = proof of identity / identification documents

身份证明 is broader. It could include:

• an ID card
• a passport
• other official identification documents

So in this sentence, 身份证明 sounds more general and more formal.

Yes, 及 could also be used in formal writing.

• 和 = and
• 及 = and, more formal and written

So both are possible:

• 身份证明和申请材料
• 身份证明及申请材料

Using 和 is still perfectly natural, even in fairly formal sentences. It is common and easy to understand.

Both can work, but the nuance is slightly different.

• 不能 often means cannot, either because it is not allowed or because the conditions are not met
• 不可以 often emphasizes not permitted

Here, 不能提交 fits well because the sentence is describing a condition for submission. It sounds like:

• submission cannot proceed
• you are not able to submit under these conditions

So 不能 is very natural in rules and procedures like this.

Usually it introduces the necessary condition, which may be either positive or negative depending on the sentence.

Here it introduces a positive condition:

• 除非……齐全 = unless ... are complete

That means completeness is the one condition that allows submission.

So the logic is:

• if the documents are complete → submission is allowed
• if not → submission is not allowed

Yes. For example:

• 身份证明和申请材料不齐全，不能提交。 = If the identity documents and application materials are incomplete, it cannot be submitted.

Or:

• 只有身份证明和申请材料齐全，才可以提交。 = Only when the identity documents and application materials are complete can it be submitted.

These all express similar ideas, but the tone is slightly different:

• 除非……否则…… = formal unless... otherwise...
• 只有……才…… = emphasizes only if
• 如果……就…… = more neutral if... then...

Yes, it sounds fairly formal and administrative.

Words and patterns that make it sound formal include:

• 除非……否则……
• 身份证明
• 申请材料
• 提交

This is the kind of sentence you might see in:

• application instructions
• government websites
• office notices
• online submission systems

In speech, people might say something a little simpler, such as:

• 身份证明和申请材料不齐的话，就不能交。
• 材料没带齐的话，不能提交。

Compared with the original sentence:

• 除非身份证明和申请材料齐全，否则不能提交。

the original sounds more official and written, while the spoken versions sound more everyday and conversational.

Yes, a few.

• 除非 → chúfēi
• 身份证明 → shēnfèn zhèngmíng
• 申请材料 → shēnqǐng cáiliào
• 齐全 → qíquán
• 否则 → fǒuzé
• 不能 → bùnéng
• 提交 → tíjiāo

A useful point:

• 不 is fourth tone in isolation, but before another fourth-tone syllable it often changes in pronunciation to second tone.
• However, in 不能 the next syllable néng is second tone, so 不 stays bù.

Also, 身份证明 is a long word group, so learners often benefit from chunking it:

• 身份
  • 证明

That makes it easier to pronounce and understand.