ptarmigan
ptboat pte pter- pteridium pteridological pteridologist pteridology pteridophyte pteridosperm pterins ptero- pterocarp pterodactyl pterodactyloid pterodactylous pteroid pteropod pteropodan pterosaur pterostigna pterygia pterygial pterygiod pterygiodus pterygium pterygote pterygotous pteryla pterylae |
ptarmigan /'tɑ:migən/
danh từ
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