Precombustion
预燃, 在前置燃烧室内燃烧
🗣️ 情景例句
and it's not about you. OK.
而且不是关于你的。好吧。
My grandma is 40 years older than me.
我祖母比我大40岁。
We're in Class Three, Grade One.
我们是在一年级，三班。