Radiation is symmetric on both sides是什么意思？

• crayon
• 实施英文
• firmness
• giraffe
• 分配英文
• banger
• various
• tomato
• passage
• saturday
• 解决方案英文
• polite
• silver
• ticket
• dragon
• lycopene
• 旋律的英文
• emergency
• neck
• vehicle
• 导师英文
• 领域英语
• approaches
• narrow
• organizations
• 方案英语
• failure
• lake
• panicked
• front

• chess翻译
• scared
• profile
• 权限英文
• 参与者英文
• toxicity
• 局外人英文
• giraffe
• tourist
• algiers
• brat
• 确认英文
• 纪念品英语
• maths
• predict
• disappointed
• mind
• erased
• bothering
• searches
• BARRIE
• theatre
• begins
• 参数英文
• committing
• lesson
• volume
• client
• cheese
• sweater

• slimsy
• urocyst
• jalor
• Breetz
• papas
• acon
• Hg
• skua
• be quartered
• be in liquor
• Samford
• milk train
• Lodine
• Tracing out
• countersunk head
• Half kg
• medulla renis
• glazed tile
• Metal worker
• ethanoyl
• service interruption
• agent provocateur
• Open the way
• Walking machine
• marking off
• rainworm
• do the best one can