I left my car in a lay-by and set off on foot.

我把车留在路侧停车带，开始步行。

《柯林斯英汉双解大词典》

In March 1889, she became the first British sovereign to set foot on Spanish soil.

1889年3月，她成为首位踏上西班牙国土的英国君主。

《柯林斯英汉双解大词典》

Li Ming and I took part in a wilderness survival program yesterday. Just before the dawn, we set out on foot in high spirits.

昨天我和李明参加了一个野外生存训练。就在黎明前，我们兴高采烈地步行出发了。

youdao

In the close to forty years since, no one has set foot on the moon.

VOA: special.2010.04.28

Mr. Sillerman first set foot on Anguilla in 1982, and over the years, visited often, completing a home there in 2007.

WSJ: Paradise Lost for Wealthy Resort Novice

Alex was the first person to set foot on the island in Norwegian waters, so under international law was able to claim it.

BBC: Devon - Alex on top of the world

Those were the first words that any human being ever spoke on another world, when Neil Armstrong was the first to set foot on the Moon in 1969.

FORBES: Neil Armstrong, First Man To Walk On Moon, Dead At 82