The expression a double-edged sword or weapon refers to something that has or can have both favorable and unfavorable consequences. Synonyms: Mixed blessing, cuts both ways.

For example:

Wealth and fame can be a double-edged sword.

The falling dollar is a double-edged sword for Americans investing abroad.

This publicity cuts both ways. In other words, it’s a double-edged sword.

You know, Roger. I believe getting into the team is a mixed blessing — I’ll have to spend a lot of time training.

Indeed, Peter. It’s a double-edged sword.

Working from home is a bit of a double-edged sword for field reps.

Tradução: faca de dois gumes,