What kind of story is told in the folk song "Picking Betel Nuts"?

Lyrics for picking betel nuts: whoever climbs up first will taste betel nuts, and whoever climbs up first will be installed by me first.

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The young lang picked betel nuts, and the little sister looked up with a basket and bowed her head to think. He is both beautiful and strong. Who is better than him? She quickly called me Lang, the green hills are there, and the water keeps flowing.

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The betel nut on the high tree, whoever climbs first will taste it first, and whoever climbs first will install it first.

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The young lang picked betel nuts, and the little sister looked up with a basket and bowed her head in meditation. He is both beautiful and strong. Who is better than him? Call my lang quickly. Green hills are high and water is long. The sun is setting and the birds are singing. Teach us to go home quickly. The sun is setting and the birds are singing. Let's hurry home.

Personal understanding (I don't know if it's right): It's about a few boys and a girl stepping on betel nuts. A boy climbs so fast that no one can match him. Later, the sun went down and he went back.

This is my personal understanding. How to understand LZ depends on myself.