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I do not know how to say a girl is beautiful and fortune.

Hello 欧阳卓儿. How are you?

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Which the following sentences is better or right?
“a beautiful fortune girl” or “a bieautiful and fortune girl”

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Both phrases are somewhat awkward in English.

To say that a girl is "beautiful" is common, so that there is no problem with that term.

However, when you try to combine the phrase "fortune girl" all sort of difficulties appear.

In English, we would not say that there is a "fortune girl" although we would say that a girl is "beautiful".

Fortune, in English means basically, either of two things.

(a) Fortune can refer to a large amount of wealth that someone has obtained, as follows.

"The beautiful girl possesses a large fortune."

(b) Fortune can refer to something like a kind of "good luck" that a person has, as follows:

"It was the good fortune of the girl, to possess great beauty and great wealth."

So a person could write something as follows to achieve the use of both Fortune and beautiful.

"The girl is both beautiful, and seems to have very good fortune in all things."

You see? If I want to speak directly to a girl, so as to flatter her, I might say something as follows:

"You are very beautiful, and you are blessed with good fortune also.

Fortune, in that last sentence, refer to an idea similar to "good luck".

CONTEXT, is important here. I would perhaps use different words if I was speaking to the beautiful girl, and also might use different words if I was talking about the girl, to other people.

.---Warm Regards, Bruce