a certain是什么意思？

• 来源英语
• 旋律的英文
• client
• 纪念品英语
• dragon
• reveal
• erased
• fiercely
• supper
• lesson
• disappointed
• ultra
• text
• algiers
• 长颈鹿英语怎么说
• polite
• giraffe
• failure
• giraffe
• emergency
• begins
• lycopene
• satisfaction
• aspect
• 参与者英文
• peeping
• various
• 导师英文
• maths
• front

• default
• firmness
• 抛弃英文
• silver
• ticket
• PAXLOVID怎么读
• volume
• prompt
• 呼吁英语
• rice
• lake
• scared
• bombarded
• organizations
• banger
• 局外人英文
• 解决方案英文
• toxicity
• neck
• tourist
• saturday
• committing
• 确认英文
• droplets
• permitted
• vehicle
• modernize
• tomato
• intermission
• monitor

• Social Science
• Computer Studies
• stay in bed
• take photos
• up and down
• sports day
• running race
• CD Walkman
• Christmas Day
• ball game
• shopping centre
• Stop thief
• Bank of China
• sounds great
• sports meeting
• have school
• go on an outing
• singing contest