spark plug

漢語翻譯

英文解釋：

名詞 spark plug:

1. electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
   同義詞：sparking plug, plug

例句：

1. John is the spark plug on his rowing team.
   約翰是划船隊的中堅分子。