Tra từ reverse gear - Từ điển WordNet v3.1

Từ điển WordNet v3.1 - WordNet Dictionary

reverse gear

noun

the gears by which the motion of a machine can be reversed
• Syn:
reverse
• Derivationally related forms:
reverse (for: reverse)
• Hypernyms:
gear, gear mechanism
• Part Holonyms:
car, auto, automobile, machine, motorcar