difficult problem是什么意思？

• panicked
• 抛弃英文
• front
• disappointed
• erased
• saturday
• 纪念品英语
• modernize
• 呼吁英语
• candy
• reveal
• passage
• lycopene
• chess翻译
• narrow
• volume
• sweater
• approaches
• client
• 缺陷英文
• dragon
• 参与者英文
• toxicity
• lesson
• neck
• profile
• amazing
• banger
• peeping
• bombarded

• 造型的英文
• repeat
• scared
• searches
• intermission
• fake
• droplets
• PAXLOVID怎么读
• general
• tomato
• 权限英文
• crayon
• 分配英文
• 队长的英文
• 实施英文
• prompt
• brat
• BARRIE
• conflict
• predict
• permitted
• 解决方案英文
• autumn
• 长颈鹿英语怎么说
• tourist
• giraffe
• cloud
• ticket
• explore
• bothering

• of sorts
• off balance
• off the air
• off the hook
• off the record
• on the run
• on the shelf
• on the side
• on the table
• on the trot
• on thin ice
• on top
• on top of
• once and for all
• once upon a time
• on order
• on paper
• on record
• on the quiet
• on that score
• on the alert
• on the go
• on the grounds of
• on the horizon
• on the hour
• on the house
• on the increase