a double-edged weapon

Translations
двустороннее оружие
Social media can be a double-edged weapon, offering both benefits and risks.
Социальные сети могут быть двусторонним оружием, предлагая как преимущества, так и риски.
Definitions
A double-edged weapon is a tool or instrument that has two sharp edges, allowing it to cut or harm from both sides. Metaphorically, it refers to a situation or action that has both positive and negative consequences.
Words
a

article or possessive pronoun
неопределённый артикль
double

adjective
двойной
edged

adjective
обоюдоострый
weapon

noun
оружие