You need to watch the accents here. "Tú sí estás buena" means "You ARE good". The "sí" is used as an amplification of sentiment.
sorry, but I still think my original answer was correct.......
though you are literally correct ...... this person meant ... Baby! You are Fine mmmm.
buy using mami then mm at the end the person who said this probably saw a nice looking girl and was letting her know it. this was probably said by a Puerto rican as a Mexican would have used mamacita and buenota probably would have whistled after the mm.
It might mean "9 cm 8 mm"
MM = 2000
Do you mean square mm?
MM stands for Music Monday.
If you mean as in Roman numerals then MM is equivalent to 2000
3/4ths of a mm, or 7.5 nanometers
mm means millimeters in measurements
That means Nominal Diameter is 300 mm
mm means millimeter which is small unit of measuring length
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million
millimeters