Sentence examples for utilized only once from inspiring English sources

Why does each town need duplicate aerial trucks, which cost more than $500,000, for their fire departments, when they are utilized only once or twice annually?

The mice were randomly assigned into specified experimental groups (n = 10 animals per group) and were utilized only once.

We utilize only CFL or LED bulbs for lighting.

When utilized, triptans were prescribed only once in a year in a large percentage (40 60%) of patients.

Use shampoo only once.

Use shampoo only once in a while.

Use a condom only once.

It happened only once.

People die only once.

"It was only once.

Only once, I think.