江湖有云：“三分钟韩语，三小时英语，三天的法语，三个月的日语，三年的德语，三百年的阿拉伯语！”到底最难的语言是什么？今天小编就带大家一探究竟。　　Many languages have been claimed to be the toughest one to learn. Here follow ten candidates for the title of "hardest l...