crank
/kræŋk; kræŋk/ n
L-shaped bar and handle for converting to-and-fro movement to circular movement （用以将往复运动变换为圆周运动的）曲柄, 曲轴
The pedals of a cycle are attached to a crank. 自行车的踏板与曲柄相连. =>illus at App 1 见附录1之插图, page xiii. crank, v [Tn, Tn.p]
~ sth (up) cause sth to turn by means of a crank 用曲柄转动某物
crank (up) an engine, ie start it with a crank 用曲柄启动发动机.
crank / kræŋk; kræŋk/ n (derog 贬) person with strange fixed ideas, esp on a particular subject; eccentric person 有古怪成见的人（尤指在某问题上）; 有怪癖的人
a health-food crank, ie one who insists on eating unusual food for health reasons 对保健食品有偏好怪癖的人.