2.[countableC usually singular] the place in a car where you put in a key to start the engine 〔汽车的〕点火开关 →5see picture at 见图car
3.[uncountableU] formalBURN the act of starting to burn or of making something start to burn 着火,起火燃烧;点火
Examples from the Corpus
ignition• No ignitionsource has been determined in the crash of the Boeing 747, which killed all 230 people aboard last July.• The most likely source of ignitionlay under Grissom's couch where bundles of wires ran across the floor of the capsule.• It sits atop the ignitionswitches for the rocketthrusters.• Phil left his key in the ignition again.• The key had been left in the ignition.• It caught on the secondtry, and after a minute's revving he switched off the ignition and let it die.• I turned the ignition key and nothing happened.• The unnamed man, 34, had just turned the ignition of the Mercedes when it exploded.
VERB + IGNITION | IGNITION + NOUN | PREPOSITIONVERB + IGNITION➤start, turn, turn on啟動/轉動/打開點火裝置◇Josh turned the ignition and the car sputtered to life.喬希轉動點火裝置,轎車突突地啟動了。➤switch off, turn off關閉點火裝置IGNITION + NOUN➤key, switch點火鑰匙/開關◇He turned the ignition key.他轉動鑰匙點火。➤system點火系統PREPOSITION➤in the ignition在點火裝置上◇I must have left the key in the ignition.我肯定是把鑰匙忘在點火開關上了。