I remember several years ago, when France was building a famous high-speed railway line, biologists discovered that one stretch of the line would obstruct a unique species of frog from returning to swamps where it mated and propagated.
記得好幾年前，法國在建造一條著名的高速鐵路時，生物學家發現，有一段高速鐵路會妨礙一群特有種青蛙回到沼澤去交尾繁殖。