learn sth the hard way是什么意思？

• 方案英语
• supper
• repeat
• fake
• permitted
• silver
• modernize
• sweater
• 领域英语
• 确认英文
• 纪念品英语
• vehicle
• narrow
• erased
• lesson
• giraffe
• bombarded
• droplets
• passage
• juice
• explore
• 来源英语
• general
• failure
• peeping
• 抛弃英文
• toxicity
• scared
• default
• intermission

• 旋律的英文
• begins
• cheese
• BARRIE
• aspect
• reveal
• general
• disappointed
• committing
• tomato
• banger
• lake
• crayon
• searches
• profile
• polite
• monitor
• saturday
• 队长的英文
• satisfaction
• maths
• fiercely
• mind
• 分配英文
• dragon
• neck
• autumn
• front
• 缺陷英文
• conflict

• Stygocaridacea
• a hundred times
• quick as thought
• Hole detector
• lazosulfide
• tomfoolery
• ultralow
• endopodal
• unship
• eluvial soil
• cannot help laughing
• banderolle
• veto power
• monochromatism
• primae viae
• syriacus
• Pascagoula
• decade counting tube
• toponym
• nut fruit
• Or a train
• sinistrocardia