- blow up (v.)
[blow up 词源字典]
- "explode," 1590s, from blow (v.1) + up (adv.). As a noun, it is recorded from 1809 in the sense "outburst, quarrel." Meaning "enlargement from a photograph" is attested by 1945. Old English had an adjective upablawan "upblown," used of a volcano, etc.[blow up etymology, blow up origin, 英语词源]