Precombustion
预燃, 在前置燃烧室内燃烧
🗣️ 情景例句
The little boy held his mother's hand firmly when crossing the street.
那小男孩过马路时紧抓着母亲的手。
A penny saved is a penny gained.
省一文是一文。
We can stop here on the right beyond the tree. Let's make our camp here.
我们可以在右边的树下停车。我们就在这里露营吧。