Sanitation

来自Big Physics
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google

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mid 19th century: formed irregularly from sanitary.


Ety img sanitation.png

wiktionary

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sanitary +‎  -ation


etymonline

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sanitation (n.)

1848, irregularly formed from sanitary. Figurative use from 1934. As a euphemism for garbage (as in sanitation engineer) attested by 1939.

取自“https://www.bigphysics.org/index.php?title=Sanitation&oldid=31497”