Sohc
单项上凸轮轴式
🗣️ 情景例句
I can't stand the commercial breaks on TV.
我忍受不了电视因为卖广告而中断节目。
I did exercise last week.
我上星期做练习。
When you visit London, one of the first things you will see is Big Ben,
当你游览伦敦时，首先看到的东西之一就是“大本”钟，