Noun:
-
electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
- It's hard to get at the spark plug without a proper wrench.
没有一把合适的扳钳，要抓住那个火花塞是困难的。
- The car acted up because the spark plugs were dirty.
汽车出毛病是因为火花塞脏了。
