Precombustion
预燃, 在前置燃烧室内燃烧
🗣️ 情景例句
You've got lots of time to improve your English.
你已经花了好多时间去提高你的英语水平。
We have a small gift for you to take with you when you leave the factory.
你离开工厂时，我们有件小礼物要送给你。
And the worst?
那么最不喜欢的呢？