Sentence examples for appear only once from inspiring English sources

(It may appear only once; it may not be repeatable).

Even very minor figures, who appear only once, get a packed footnote.

The analysis started from those residues that could more easily be identified such as valine, histidine, arginine and alanine residues which appear only once in the peptide structure.

Of course, Mr Kerry was no Bill Clinton, but Mr Bush was no Ronald Reagan: such naturals appear only once in a generation.

Twitter says that the ads will appear only once, and can be easily removed by clicking the word "dismiss" below the post.

She longs for a dog, but alas, her parents appear (only once) as negative shapes doing a fraught and final dance of NO.

Both words appeared only once in his Aug. 21 address.

Bernard must have a number that appears only once.

Quantitatively, the three-note sequence appears only once in Newton's composition.

So far, he appears only once but would be thrilled to appear again.

In the police case file documenting Etan's disappearance, Mr. Hernandez's name appears only once.