extroversion [ˌekstroʊ'vɜ:ʃən]

例句:

• Each possessed a different level of extroversion and friendliness.
  来自WSJ
• The oft - drawn contrast extroversion and introversion is entirely superficial.
  在外向和内向之间通常所作的对比完全是表面的.
  
• Extroversion is commonly used in US & pop psych.
  来自SA
• It's just a variant spelling of extroversion.
  来自SA
• The contrast between extroversion and introversion is entirely superficial.
  在外向和内向之间所作的对比完全是表面的.
  
• A personality trait including the qualities of both introversion and extroversion.
  中向性格一种包括内向和外向的性格特征.