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outline; summary; argument
ドラマのあらすじを友人に説明した。
I explained the plot of the drama to my friend.
あらすじだけでは作品の魅力は伝わらない。
The appeal of a work can't be conveyed by its summary alone.
裏表紙にあらすじが載っていたので読んだ。
The synopsis was printed on the back cover, so I read it.