Let's go on foot.

让我们步行去。

It takes half an hour to go on foot from my home to my school and back.

从我家到学校来回要走半小时。

Would you like to go on foot?

你愿意步行去吗？

To go on foot would take long.

步行将很费时间。

Shall we go on foot? Good idea.

我们步行去好吗？好主意。