On foot; walking.

• Traveling by walking, not by vehicle or mount.

徒步；步行。

• 通过步行出行，而非乘坐交通工具或骑乘。

In progress; underway; happening now or being planned.

• Already set in motion; in development.

正在进行；在筹划中；已启动。

• 已经开始运作；处于进行阶段。