a double-edged sword (a dabu-erujido swōdo)

Idiom Science

意味

something that has both positive and negative consequences

良い面と悪い面の両方を持つもの (yoi men to warui men no ryōhō o motsu mono)

例文

"The internet is a double-edged sword; it provides vast information but also exposes us to privacy risks."

"インターネットはa double-edged swordです。膨大な情報を提供しますが、プライバシーのリスクにも晒されます。" (Intānetto wa **a double-edged sword** desu. Bōdaina jōhō o teikyō shimasu ga, puraibashī no risuku ni mo sarasaremasu.)