covalency是什么意思？

• profile
• supper
• prompt
• BARRIE
• cloud
• 呼吁英语
• chess翻译
• general
• emergency
• theatre
• passage
• passage
• erased
• committing
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• 缺陷英文
• droplets
• 流浪者英文
• vehicle
• modernize
• 方案英语
• 确认英文
• approaches
• general

• tomato
• monitor
• 参与者英文
• firmness
• reveal
• amazing
• algiers
• permitted
• 参数英文
• lake
• begins
• 纪念品英语
• front
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• 造型的英文
• repeat
• pear
• ultra
• saturday
• maths
• searches
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• failure
• dragon
• lycopene
• 来源英语
• candy
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• protoplast
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• be partial to
• bear fruit
• come out with
• conclusiveness
• forearming
• ideational
• make an appointment
• outre
• pretender
• salesroom
• volitation
• cumulation