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Use "pin-prick" in a sentence
"There was a click and a tiny pin-prick of red lit up, followed immediately by a mechanical howl as the robot lunged out of the undergrowth."
"Back when this story took place, he'd the same beak nose of a bird of prey, the same beady eyes with pin-prick pupils, the same scrawny neck to angle his head this way and that, to size up a Scruffian just Fixed or all set for a Scrubbing."
"Then let's say she looks and really sees him: his smooth and tender hands; the gentle cross-stitch of his brow, and say that there, in the rich emptiness of her longing, comes the pin-prick tingle of sudden recognition, the realisation that nothing in the physical world could bring her satisfaction."