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chug (n.)
[chug 词源字典]
1866, echoic of a working steam engine. As a verb, from 1884. Related:
Chugged
;
chugging
. Drinking sense attested by 1940s (
chug-a-lug
), probably imitative of the sound of swallowing.
[chug etymology, chug origin, 英语词源]
[chug 词源字典]