内燃机

internal combustion engine

inside / inner / internal / within / interior

internal combustion (engine)

to burn / to ignite / to light / fig. to spark off (hopes) / to start (debate) / to raise (hopes)

(bound form) machine; mechanism / (bound form) aircraft / (bound form) an opportunity / (bound form) crucial point; pivot / (bound form) quick-witted; flexible / (bound form) organic

automobile