I means that every individual is unique, having their own set of personality traits, needs, wants, and desires. Just like there are no two fingerprints exactly alike, their are no human beings exactly alike. Thus the saying, "there is only one of someone."
If theres only one date, it's the expiration date.
Theres no Jake in One Direction. Theres only Harry, Liam, Louis, Zayn and Niall.
It means there is only one of something or someone, there isn't another "of its (or their) kind."
Your messed!
THERES ONLY ONE MOON STOOPIIDD!!!!
no theres only one
theres only one specie
theres only one and thats mine
Theres only one I can think of : HACK
Theres only one Louis Tomlinson
theres only one at a time
Something is contacting in the engine, my guess is the fan. Have someone sit in your car and accelerate for you and look around to see if you can find anything hitting. If not, take it to someone.