open a can of worms

意味

to start dealing with something that causes many new problems

手をつけたせいで多くの新たな問題を引き起こす.

例文

1. 1Asking about the old family argument at dinner would open a can of worms.
2. 2The new rules on working from home have opened a can of worms for managers.
3. 3Checking one invoice opened a can of worms: dozens of payments had gone to the wrong accounts.
4. 4If we question one result, won't we open a can of worms and have to recheck every exam?
5. 5Nobody wants to discuss the parking spaces again, because it'll only open a can of worms.

文法

変化するのは open だけで、opens、opening、opened となる。worms は複数形のまま。