These factors have prompted scientists to look more closely at the other naturally-occurring substances in red wine in order to pin down the root of RWH.
Obviously, with all of these variables, it's not always easy to pin down an exact measurement of your car's actual fuel mileage performance during any one particular trip.
With so many songs released, it may be hard to pin down a set amount of songs to be considered "the best", and since each fan has their own opinion on what songs he or she likes and dislikes, the listings can vary.
His dark gaze was steady, his body rippling with the power she couldn't quite pin down.
Learning the rules of business casual is a challenge since it's difficult to pin down a one-size-fits-all business casual dress code.
