do sth. which one has done before是什么意思？

• saturday
• maths
• scared
• fake
• 队长的英文
• bothering
• 流浪者英文
• 抛弃英文
• text
• chess翻译
• banger
• silver
• predict
• ticket
• passage
• intermission
• 缺陷英文
• crayon
• 参与者英文
• panicked
• theatre
• candy
• 确认英文
• cheese
• lesson
• organizations
• 领域英语
• searches
• front
• algiers

• neck
• monitor
• client
• 实施英文
• repeat
• supper
• sweater
• satisfaction
• autumn
• 纪念品英语
• reveal
• modernize
• firmness
• 旋律的英文
• general
• PAXLOVID怎么读
• pear
• dragon
• profile
• 呼吁英语
• erased
• explore
• mind
• 方案英语
• default
• ultra
• giraffe
• tomato
• general
• 分配英文

• earner
• earnest
• earnestly
• earnestness
• earning
• earnings
• EAROM
• earphone
• earpick
• earpiece
• earplug
• earring
• earrings
• earser
• earshot
• earsing
• earsplitting
• earth
• earthborn
• earthbound
• earthcrust
• earthen
• earthenware
• earthflow
• earthing
• earthlight
• earthliness
• earthling
• earthly
• earthmeter