Definitions

1. 1. if I (you, she, he...) had known it would come to this, I (you, she, he...) would not have acted thus (idiom)
2. 2. to regret vainly one's past behavior

Components

• 早知 zǎo zhī – foresight
• 今日 jīn rì – today
• 何必 hé bì – there is no need
• 当初 dāng chū – at that time