单词	cleanliness
释义	cleanlinessclean‧li‧ness /ˈklenlinəs/ noun [uncountable] Word Origin WORD ORIGINcleanliness Origin: 1400-1500 cleanly ‘pure, clean’ (11-21 centuries), from Old English clænlic, from clæne; ➔ CLEAN1 Examples EXAMPLES FROM THE CORPUS Always those twin concerns: cleanliness and efficiency. Improved cleanliness of young children can reduce the nasal and ocular discharges that constitute a major reservoir of infectious material. In general the principles depend on cleanliness and appropriateness of animals to their habitats. Sacrificing cleanliness to modesty, I left my trousers on. Some parents have very high expectations of cleanliness and expect complete conformity from their child. The definition of cleanliness would delight a philosopher or scholar but is unwieldy in practice. Their preference for cleanliness extends to a marked dislike of the chemicals that we may choose to chuck in. Word family WORD FAMILYnouncleanercleaningcleanlinesscleancleanserverbcleancleanseadverbcleancleanlyadjectiveclean ≠ unclean the practice of keeping yourself or the things around you clean:  a high standard of cleanliness
随便看	performance performance art performance artist performance-enhancing performance-related pay performer performing arts perfume perfumed perfumery perfunctorily perfunctory pergola perhaps peril perilous perilously perimeter perinatal period periodic periodical periodically periodic table periodontal

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