The phrase "a once only" is not standard in written English and may cause confusion.
It could be used in contexts where you want to emphasize that something occurs only one time.
Example: "This offer is a once only opportunity to save on your purchase."
Alternatives: "a one-time" or "a single instance".
On the other side of the debate, Riggs (1997, 52) reaches a conclusion similar to Horwich's: "Lewis's account may do for a once only attempt, but is untenable as a general explanation of [the time traveller's] continual lack of success if he keeps on trying [to kill Grandfather]." Goddu (2007) criticises Smith's first objection to Horwich.
The tradeoff between financial self interest and equity is exemplified by economic choices in the Ultimatum Game (UG), where a proposer makes a once only offer of how to divide a sum of money, and a responder accepts or rejects the proposed division.
The cost of a MGIT reader is around US$ 3000 and it is a once only investment.
Especially, during a once only or occasional contact, or when there is limited time to establish a relationship, the physician must quickly make the claimant feel at ease in order to obtain the information that is necessary for the assessment.
13 16 17 As we cannot yet foresee the outcome of a "once only" flexible sigmoidoscopy screening concept in terms of prevention of colorectal cancer, it will be very interesting to follow all these studies with their differences in baseline pick-up rates and polyp size dependent thresholds for a work-up colonoscopy.
The best galas have a once-only atmosphere.
A once-only expense or a contingent liability: these are matters over which reasonable people can agree to differ.
But it's not a once-only process that you undertake when you're looking for a job and then forget about.
Education is for most of us, a once-only experience, and its value is hard to assess, except in retrospect.
But mostly it will be a chance to revisit an adventure I'd thought at the time was a once-only, last-chance, now-or-never thing.
It produced not a once-only step-up in productivity but a century-and-a-half of industrial expansion and continuing innovation that transformed lives everywhere.
