He stumbled blindly on through the dark building.

他摸索着地穿过漆黑的建筑物。

I could hear my father bumbling about downstairs.

我听在楼下地走着。

Without my glasses, I blundered into the wrong room.

我没戴眼镜, 地走错了房间。

He blundered through the dark forest.

他在黑暗的森林中地走。