do sth. once in a while是什么意思？

• failure
• chess翻译
• 方案英语
• sweater
• 领域英语
• ticket
• firmness
• 旋律的英文
• toxicity
• various
• predict
• tourist
• mind
• 实施英文
• monitor
• text
• passage
• 参与者英文
• giraffe
• committing
• maths
• 流浪者英文
• general
• 确认英文
• brat
• banger
• amazing
• bombarded
• front
• narrow

• 抛弃英文
• fake
• prompt
• 纪念品英语
• volume
• searches
• cloud
• tomato
• bothering
• explore
• 呼吁英语
• scared
• organizations
• erased
• lycopene
• default
• polite
• aspect
• cheese
• droplets
• algiers
• begins
• 队长的英文
• pear
• rice
• 导师英文
• 权限英文
• crayon
• theatre
• autumn

• andhaveagoodtime
• drone away
• act as a procurer
• beat rhythmically
• vesturing
• In fiction
• Rolff
• liberal art
• glad rags
• phyllome
• by the aid of
• Introverted
• dothiepin
• Words spoken
• phosphatidylcholine
• Use your left hand
• limoctonia
• ammoninted
• solving process
• wheel and axle
• straight on the head
• atmidoscope
• germinativa
• festoon lighting