Learn Romanian: Căpșuna este la fel de dulce ca zmeura. - The strawberry is as sweet as the raspberry.

To say "as [adjective] as", Romanian uses the set phrase la fel de before the adjective and ca after it. Here, la fel de dulce ca literally means "at the same kind of sweet like", which translates smoothly to "as sweet as".

Why do căpșuna and zmeura end in "-a" instead of "-ă"?

The dictionary forms of these feminine nouns are căpșună and zmeură. Because the sentence is talking about specific fruits ("the" strawberry and "the" raspberry), the definite article must be attached. For feminine nouns ending in -ă, the rule is to replace that -ă with -a, giving us căpșuna and zmeura.

Does the adjective dulce change to agree with the feminine nouns?

In this case, no. Dulce is an adjective that ends in -e in its dictionary form. These adjectives have the exact same form for both masculine and feminine nouns in the singular. It would only change if the nouns were plural, where it becomes dulci.

Is there another way to say "as sweet as" besides using la fel de?

Yes, you can also use tot atât de dulce ca. Both la fel de and tot atât de are standard ways to form a comparative of equality (meaning "equally" or "as... as") and are perfectly interchangeable here.