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all; altogether; entirely; completely
exactly alike (e.g. in appearance); spitting image of; identical; strikingly similar
彼は父親にそっくりだ。
He looks exactly like his father.
彼は本当に父親にそっくりだ。
He really looks exactly like his father.
引き出しの中身をそっくり箱に移した。
I moved the entire contents of the drawer into a box.