How to pronounce word in English - Learn English free online - Obligatoriness - How to pronounce the english word Obligatoriness in english. Start with S. Learn from me. - www.pronounceword.com

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Obligatoriness. How to pronounce the english word Obligatoriness.Start with S. Learn from me.

Obligatoriness

英语发声

美语发声

必要性

强制性

网络释义

短语

rational obligatoriness性责任

专业释义

生物学

专性的，固性的

英英释义

英汉双解大词典