"We had a dream about the beauty of the sea."

Translation: Ni havis sonĝon pri la beleco de la maro.

[Michael_Sautter]

What's the difference between 'revo' and 'sonĝo'? I was correct with revo but it said another correct answer is sonĝo.

[FredCapp]

Revo is a waking dream, think "reverie". Sonĝo is a sleeping dream.

[FredCapp]

I got dinged for Sonĝon ni havis pri la mara beleco. Even after they had us translate Sonĝon mi havas.

[VincentOostelbos]

Yes, many possible alternatives are still missed by the program. I reported hundreds already, but there are still many, just because Esperanto is so free with word order and the like. The example you gave I think could also be reported.

[FredCapp]

I did. And later, during a review I reported Sonĝon havis ni…

Dankon.

[Thynthias]

Pardonu, mi estas komencanto, but wouldn't beauty be 'belo'?