the die is cast

含义

a decision has been made and now cannot be undone

决定已经作出，无法挽回.

例句

1. 1Once we'd signed the papers and paid the deposit, the die was cast.
2. 2I've handed in my notice, so the die is cast.
3. 3The invitations have gone out and the venue is paid for, so the die is cast.
4. 4When Maria posted the letter, she knew the die was cast and there was no going back.
5. 5Tom has accepted the job in Canada; the die is cast, and he leaves in May.

语法

固定的分句；只有 is 变化，过去时为 was。这里的 die 是 dice 的古旧单数形式。

意思相近