insider
C1英 /ɪnˈsaɪdə(r)/米 /ɪnˈsaɪdər/
意味
noun
内部人士；関係者
a person who knows a lot about a group or an organization, because they are part of it
“The situation was described by one insider as ‘absolute chaos’.”
実際の動画で insider を覚える
TED / YouTube の精読レッスンを見て、単語をタップ、間隔反復で復習。
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