劍橋詞典[ 可數(shù)名詞：有複數(shù)形式的名詞 通常作爲(wèi)單數(shù)使用的名詞 ] the electrical system in an engine that causes the fuel to burn or explode in order to start the engine 點(diǎn)火裝置，點(diǎn)火器 Switch/Turn the ignition on. 打開點(diǎn)火開關(guān)。 an ignition key 點(diǎn)火開關(guān) [ 不可數(shù)或單數(shù)名詞：沒有複數(shù)形式的名詞 ] formal the act or process of something starting to burn 著火，燃燒 返回 ignition