therein lies
成語所屬單字therein
therein lies — 慣用語
1. used to introduce or emphasise the result, problem, or important point of a situ
1.慣用語
釋義
問題/關鍵就在於
used to introduce or emphasise the result, problem, or important point of a situation that has just been described
例句
The company expanded too quickly, and therein lies the source of its financial troubles.
Reema believed the plan was perfect, but therein lay the real danger.