best friend
US /ˌbest ˈfrend/
UK /ˌbest ˈfrend/
名詞
1.
親友, 一番の友達
a person's closest friend
例:
•
She told her best friend everything.
彼女は親友にすべてを話した。
•
He and his best friend have known each other since childhood.
彼と彼の親友は幼い頃からの知り合いだ。
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