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The polar bear is the largest of all land predators in the world.

The polar bear is the largest land predator.

I understand 'The polar bear' is known as 'A representative singular' which specifys the particular type of animal. If you say 'A polar bear', then this sounds odd and means 'one polar bear.'

Can I say 'A dog loves a person' instead of using 'A representative singular'? The meaning of the sentence could not be 'One dog loves some one person', couldn't it?

I want to say this as a generall idea like the two sentence on top, not to say 'One particular dog loves one particular person.'

Thanks
LiJ
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When you use a definite article, it means you're talking about objects as about a whole class.

The pine grows in northern countries.<-- This kind of tree grows in northern countries.

A pine crowns in a northern country.<-- An undefined pine tree growns in an undefined northern country.

Hope this helps.
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I want to say this as a general idea

The generic statement you are looking for is this.

Dogs love people.


CJ
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Comments  
Yes it helps Ruslana. I have a question in particular sentences like below.

The dog loves the human.

The dog loves the person.

The dog loves a person.

A dog loves a person.

Do they all mean the same?
 CalifJim's reply was promoted to an answer.
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The difference is as follows:

The dog loves the human. --> A concrete dog (a dog you have in mind) loves a concrete human (a human you have in mind).

The dog loves the person. --> A concrete dog (a dog you have in mind) loves a concrete person (a person you have in mind).

The dog loves a person. --> A concrete dog (my dog, for example) loves someone (an undefined person).

A dog loves a person. --> One undefined dog loves one undefined person (no concrete dogs nor persons in mind).
RuslanaThe difference is as follows:

The dog loves the human. --> A concrete dog (a dog you have in mind) loves a concrete human (a human you have in mind).

The dog loves the person. --> A concrete dog (a dog you have in mind) loves a concrete person (a person you have in mind).

The dog loves a person. --> A concrete dog (my dog, for example) loves someone (an undefined person).

A dog loves a person. --> One undefined dog loves one undefined person (no concrete dogs nor persons in mind).

Thanks, CJ.

I understand perfectly. It's clear Emotion: smile

Many many many thanks Ruslana Emotion: smile