Source

出典

  • Weblio 英和辞典、和英辞典
  • Dictionary.com
  • Thesaurus.com
  • 英辞郎 on the web
  • The Kenkyusha Dictionary of English Collocations
  • Kenkyusha’s New English Dictionary
  • Wikipedia
  • Cambridge Dictionary
  • Words in a sentence .com
  • Merriam Webster
  • Collinsdictionary.com