Set Foot On 这是个词组吗

Set Foot On 这是个词组吗 on foot是不是词组啊? 请问go on foot on foot walk有区别吗? on foot the day will come--man will set foot on other planets beside -How long will it be ______ Chinese astronauts set foot on t With the guide _the way ,we set out on foot to the village? 英语翻译we have never set foot on somewhere like the Hell,but we the day will sonn come 什么 man will set foot on Mars 1.China has set foot ___ space.A.in B.on on both sides of的同义词组,It is about ten minutes on foot from m 英语词组 set up