What are the connotations of two jujube trees?

In general, it is generally believed that "two trees" should refer to two different trees, but there seems to be nothing wrong with the writing like "one is a jujube tree and the other is a jujube tree".

Aside from the context, this sentence is really cumbersome.

In real life, absolutely no one would say that.

But it is such a seemingly tedious sentence that constructs a context and an atmosphere.

If you use this sentence, you will feel a kind of loneliness gradually.

There is nothing outside the yard except jujube trees.

There is a sense of loneliness in it.

When readers see two trees outside the yard, one is a jujube tree, and they must think that there are other things outside the yard, but they don't. The rest are jujube trees.

Very monotonous, very lonely.

This feeling of loneliness cannot be expressed by "there are two trees outside the yard".

Another manifestation is dissatisfaction with this loneliness.

Lu Xun hoped for fresh social phenomena and "other trees", but he didn't. Lu Xun is looking forward to it.

Someone asked, did Lu Xun think so much before writing?

If we didn't think of it beforehand, it was accidental inspiration, so we don't have to bother to discuss it here.