英语语法分析

I saw a frontloader knocking down a house.

我看到一台装载机正在推倒一幢房子。

I drove down another back road which will run next to the expressway and saw a frontloader knocking down a house.

我顺着与这条高速公路并行的另一条土路开过去，看到一台推土机正在敲倒一幢房子。