Learn Portuguese (Portugal): O presente é bonito e ela adora-o. - The gift is beautiful and she adores it.

The -o is a direct object pronoun meaning 'it' (or 'him'). In European Portuguese, these pronouns are typically attached to the end of the verb with a hyphen. Here, adora-o translates to 'adores it'.

Does the -o in adora-o refer to the woman (ela) or the gift (presente)?

It refers to the gift. O presente is a masculine word, so it is replaced by the masculine pronoun -o. If she adored a feminine object, like a flower (a flor), the pronoun would change to match the feminine word: adora-a.

Why do we use é here instead of está for the word 'is'?

We use é (from the verb ser) because being beautiful is treated as an inherent, core quality of the gift. We use está (from estar) for temporary conditions, such as if the gift was temporarily dirty or wet.

How is the -o at the end of adora-o pronounced?

Because it is unstressed, the final -o is pronounced like a short 'oo' sound (similar to the 'oo' in the English word 'boot'). The whole word sounds somewhat like 'ah-DOR-ah-oo'.