原文也是，那幾句if etiqette were a train。。。

if society were a train， etiqette would be the rails along which only the train could rumble forth.

我怎麽覺得only 放的地方不對。 should be “only along which the train could rumble forth“

我的英語老師特強調modifier的位置，老給我改這樣的錯。