例句與造句

1. The company committed to innovating new methods of driver instruction in 1935, when it introduced the " Reactometer ", the first machine designed to record motorists'reaction time.
2. The Reactometer was awarded the " Grand Prix " at the Paris Exposition of 1937, after which it toured the United States as part of a highway safety exhibit, and was displayed at the 1939 New York World's Fair.
3. It's difficult to find reactometer in a sentence. 用reactometer造句挺難的