wǒ de dēngshānxié hé bēibāo zài zhèlǐ.

的 marks possession, similar to 's or of in English. So 我的登山鞋 means my hiking shoes, and 我的背包 means my backpack.

In this sentence, 我的 applies to both nouns together:

• 我的登山鞋和背包
• my hiking shoes and backpack

So the sentence means that both the shoes and the backpack belong to me.

It normally applies to both.
So 我的登山鞋和背包 is understood as:

• my hiking shoes and my backpack

This is very natural in Chinese. You do not need to repeat 我的 unless you want extra emphasis or clarity.

No, that would sound ungrammatical here.

With pronouns like 我, 你, 他, Chinese usually needs 的 before most nouns when showing possession:

• 我的鞋
• 你的包
• 他的书

There are some cases where 的 can be omitted, especially with close relationships or a few very common expressions, such as:

• 我妈妈
• 我家
• 我同学

But with 登山鞋 and 背包, you should use 的.

和 means and when joining nouns or noun phrases.

So:

• 登山鞋和背包
• hiking shoes and backpack

It is the normal word for connecting two things in this kind of sentence.

Sometimes, yes. In casual speech, people may also use 跟 to mean and:

• 我的登山鞋跟背包在这里。

But 和 is the standard, neutral choice and is especially good for learners.

在 is used to show location. In this sentence, it works like to be at / to be in / to be located at.

The basic pattern is:

• A 在 B
• A is at/in B

So:

• 我的登山鞋和背包在这里。
• My hiking shoes and backpack are here.

Because this sentence is about location, not identity.

Use 是 when one thing equals or is identified as another thing:

• 我是学生。
• I am a student.

But for location, Chinese normally uses 在, not 是:

• 书在桌子上。
• The book is on the table.

So 我的登山鞋和背包在这里 is correct, while using 是这里 here would not be natural.

这里 means here, literally something like this place.

It is made of:

• 这 = this
• 里 = inside / in / place

So 这里 means here or in this place.

A very common spoken alternative is 这儿, which means the same thing:

• 我的登山鞋和背包在这儿。

Both are natural.

It is a compound noun made up of:

• 登山 = mountain climbing / hiking
• 鞋 = shoes

Together, 登山鞋 means hiking shoes or mountaineering shoes, depending on context.

Chinese often builds words this way, by combining meaningful parts into one noun.

Chinese nouns usually do not change form for singular vs. plural.

So 鞋 can mean shoe or shoes, depending on context.
Likewise, 背包 can mean backpack or sometimes backpacks, though here it is naturally understood as one backpack.

In this sentence, 登山鞋 is understood as hiking shoes, even though there is no special plural ending like English -s.

The pattern is:

• possessor + noun(s) + 在 + location

So here:

• 我的登山鞋和背包 = my hiking shoes and backpack
• 在这里 = are here

Put together:

• 我的登山鞋和背包在这里。

This is very typical Chinese word order for saying where something is.

In this sentence, 的 is pronounced de with a neutral tone.

So you would say:

• wǒ de

not a strong full-tone dè in normal speech.

This neutral tone is very common when 的 is used as a possession marker.

It is possible in special contexts, but it is not the normal neutral order.

The most natural basic sentence is:

• 我的登山鞋和背包在这里。

Starting with 在这里 can sound more emphatic or context-driven, like you are contrasting locations. For a learner, the original order is the best pattern to use first.

Yes. That is also grammatical.

Changing the order of 背包 and 登山鞋 just changes which item is mentioned first:

• 我的登山鞋和背包在这里。
• 我的背包和登山鞋在这里。

Both mean that the two things are here. The difference is only in emphasis or natural flow.

It is neutral and natural. It works in both spoken and written Chinese.

If you want a more conversational spoken version, you might hear:

• 我的登山鞋和背包在这儿。

But the original sentence is perfectly normal in everyday Mandarin.