a double-edged sword

含义

something that has both good and bad effects

既有好处也有坏处的事物.

例句

1. 1Working from home is a double-edged sword: no commute, but you can feel lonely.
2. 2Fame can be a double-edged sword for young musicians.
3. 3Social media is a double-edged sword for small shops, bringing customers but also angry reviews.
4. 4The bonus scheme turned out to be a double-edged sword, since staff earned more but stopped helping each other.
5. 5For many students a part-time job is a double-edged sword, because it pays the bills but eats into study time.

语法

可数名词短语，常用在 be 或 can be 之后。double-edged 要带连字符。