Sohc
单项上凸轮轴式
🗣️ 情景例句
It's good, but it's a little expensive.
很好，不过价格有一点贵。
Nobody's at home.
家里面没人。
As soon as he opened his mouth, everyone burst out laughing.
但他刚一开口说话，人们便哄堂大笑起来。