The tough route是什么意思？

• maths
• tomato
• cloud
• disappointed
• dragon
• banger
• 实施英文
• 纪念品英语
• 确认英文
• ticket
• various
• PEGGING
• 领域英语
• explore
• failure
• default
• giraffe
• monitor
• committing
• volume
• predict
• algiers
• 呼吁英语
• 造型的英文
• front
• silver
• 局外人英文
• 参与者英文
• scared
• conflict

• 队长的英文
• 抛弃英文
• lesson
• lycopene
• erased
• firmness
• 导师英文
• searches
• neck
• intermission
• bombarded
• 缺陷英文
• general
• lake
• chess翻译
• text
• peeping
• sweater
• emergency
• theatre
• narrow
• general
• 方案英语
• autumn
• BARRIE
• 解决方案英文
• organizations
• juice
• brat
• aspect

• cut price
• peristalses
• dally with
• tation
• flirt with
• follow like sheep
• take pity on
• make game of
• press clipping
• Pravda
• potamic
• act drop
• show sympathy for
• press cutting
• circle around
• branch water
• Fifteen years old
• postal card
• publicize widely
• tail wave
• Hall of Fame
• In the race
• friendly sentiments
• zibeth
• parva
• cosiest