be busy doing sth.是什么意思？

• 权限英文
• passage
• 分配英文
• failure
• candy
• bothering
• lake
• front
• searches
• erased
• 流浪者英文
• supper
• PEGGING
• tomato
• lesson
• prompt
• profile
• pear
• tourist
• text
• juice
• intermission
• 抛弃英文
• PAXLOVID怎么读
• emergency
• 确认英文
• rice
• mind
• default
• 呼吁英语

• algiers
• reveal
• amazing
• BARRIE
• brat
• 参数英文
• 造型的英文
• crayon
• cloud
• predict
• organizations
• approaches
• 局外人英文
• vehicle
• ultra
• various
• 缺陷英文
• begins
• volume
• peeping
• theatre
• saturday
• general
• firmness
• polite
• 旋律的英文
• 领域英语
• fiercely
• 来源英语
• passage

• To be competent
• trump up a charge
• Insert pen tip
• enstrophe
• dredge up
• overripe
• gray antimony
• sandpit
• Be requisitioned
• bromidum
• merchant wholesaler
• computing machinery
• a strange affair
• hasalmost
• senior citizens
• A Better Life
• wavy hair
• tritici
• at a word
• firstborn daughter
• crow bar
• defend against
• the Axis