"Mereka datang dan pergi."

Translation: They come and go.

[dkfour]

They arrived and went should have been accepted

[Handrisuselo]

To come = datang
To arrive = sampai; tiba

Yes, both are interchangeable in certain context, but they aren't synonyms.

They aren't interchangeable as follows:
Will you come to my party? = Apakah kamu akan datang ke pestaku?

You can't use "sampai" or "tiba" for this context.

[LawsonDaSi]

Karma karma karma chameleon....

[Jaidyn233231]

Heck Yes!

[duolingotfek]

For "mereka datang dan pergi", the better translation is "They come and go"

Closest translation for "Arrive": tiba

Closest translation for "depart": berangkat.

Meanwhile, for

Come: datang

Go: pergi

[deactivated user]

They come and got rejected by duolingo push for losing their streak, so they go.

[9D2]

what's the difference leave and go?

[ArnaMounta]

Surely, "They arrive and then depart," is correct also