source material是什么意思？

• rice
• lycopene
• approaches
• dragon
• profile
• panicked
• volume
• autumn
• 领域英语
• cheese
• bombarded
• begins
• brat
• 参数英文
• fiercely
• organizations
• various
• 呼吁英语
• erased
• tourist
• text
• sweater
• PAXLOVID怎么读
• ticket
• mind
• 队长的英文
• prompt
• client
• intermission
• supper

• satisfaction
• default
• conflict
• cloud
• 分配英文
• lesson
• 实施英文
• lake
• aspect
• 参与者英文
• 权限英文
• BARRIE
• 确认英文
• committing
• algiers
• 造型的英文
• silver
• bothering
• predict
• 来源英语
• saturday
• toxicity
• giraffe
• tomato
• 旋律的英文
• narrow
• maths
• 抛弃英文
• neck
• amazing

• hmm
• PRC
• good job
• have a look
• Chinese book
• English book
• math book
• too many
• long hair
• short hair
• baseball player
• art room
• computer room
• music room
• this way
• TV room
• English class
• go to the playground
• music class
• what for