| 释义 |
DEFINITIVE EXAMPLES 权威例句〔rev〕Keep the revs up (= the engine parts turning quickly) or the engine will stall.保持发动机高速运转，不然车就会熄火。剑桥高阶Oil companies claim that high-octane fuel keeps engine parts cleaner than regular gasoline.石油公司声称高辛烷燃料比传统汽油更能保持引擎部件的清洁度。剑桥国际 |