sleepless词源
发布于：2025-07-05 16:59浏览量：118文/优校网
英文词源
- sleepless (adj.)
- early 15c., from sleep (n.) + -less. Old English had slæpleas but the modern word seems to be a re-formation. Similar formation in German schlaflos, Dutch slapeloos. Related: Sleeplessly; sleeplessness.
