It was only after you arrived overseas that you realized what "starting again from scratch" really means! Then today's hardship aroused nostalgia for the good old days, and unwilling to be lonely, you went running back home.
到了外國，才知「再起新門牆」是怎麼回事！於是，今日的困苦喚起對昨日光輝的思念，不甘寂寞的人，又要跑回老家去。