the world is someone's oyster
US /ðə wɜːrld ɪz ˈsʌm.wʌnz ˈɔɪ.stər/
UK /ðə wɜːrld ɪz ˈsʌm.wʌnz ˈɔɪ.stər/

1.
世界は思いのまま, 世界は彼のもの
a person has the ability and freedom to do exactly what they want and go anywhere they want
:
•
After graduating from college, with her new degree, the world was her oyster.
大学を卒業し、新しい学位を得て、彼女にとって世界は思いのままだった。
•
With his talent and ambition, the world is his oyster.
彼の才能と野心があれば、世界は彼の思いのままだ。