do sth. once in a while是什么意思？

• vehicle
• 参数英文
• various
• pear
• permitted
• cloud
• amazing
• rice
• 长颈鹿英语怎么说
• 呼吁英语
• lake
• 旋律的英文
• tomato
• monitor
• passage
• juice
• silver
• brat
• giraffe
• 确认英文
• organizations
• 分配英文
• mind
• aspect
• profile
• erased
• narrow
• begins
• modernize
• lesson

• theatre
• 实施英文
• predict
• disappointed
• fake
• fiercely
• 缺陷英文
• PEGGING
• 造型的英文
• searches
• 领域英语
• scared
• 局外人英文
• bothering
• chess翻译
• satisfaction
• 参与者英文
• repeat
• reveal
• 队长的英文
• candy
• dragon
• banger
• searches
• sweater
• 权限英文
• committing
• ticket
• 方案英语
• failure

• fixed star
• Mislisted
• fremdness
• refingency
• Ordnance Officer
• adventitia
• leaf vein
• angiosis
• multipath
• systematy
• Sudden jump
• rectrim
• pili
• And I Hate you so
• printing and dyeing
• socomfortable
• lacquerware worker
• curliest
• File Find
• more tedious
• millionare
• skip distance
• Stealing belt
• yolk skin