gear-change

n movement from one position of the gear mechanism to another 换挡; 变速: a smooth gear-change 平稳的变速.

gay, gayness, gaze, gaze at, gazebo, gazelle, gazer, gazette, gazetteer, gazump, gazumper, gazumping, GB, GC, GCE, GCSE, Gdn, GDP, GDR, gear, gearbox, gearwheel, gecko, gee, gee-gee, geese, geezer, Geiger counter, geisha, gel, gelatine, gelatinous, geld, gelding, gelignite, gem, Geminean, Gemini, gemstone, gen,