| 词源 |
soda pop. At the beginning of the 19th century soda water consisted of nothing but water, a little soda, and sometimes a bit of flavoring. Soon someone thought to force gas into the water and to keep it there under pressure, the soda water sparkling and foaming when the pressure is removed and the gas escapes. The soda was kept under pressure in cylinders that came to be called soda fountains and were often quite unsafe, for when dropped the pressure inside them could cause a tremendous explosion, which happened once in a while, according to newspapers of the day. At any rate, the sparkling, popping soda that came out of the fountains proba- bly was responsible for the name pop, for “soda,” long before soda was bottled. Soda pop or pop, is not recorded in the lan- guage, however, until the early 20th century. |