set in stone

含义

fixed and impossible to alter

已经定死，不能更改.

例句

1. 1These are only rough ideas; nothing is set in stone yet.
2. 2The wedding date isn't set in stone, so we could move it to June.
3. 3The timetable for next term is set in stone, so the dates can't change now.
4. 4Don't worry, the menu isn't set in stone; we can still add a vegetarian option.
5. 5Are the rules of the competition set in stone, or can the judges make exceptions?

语法

这里的 set 是过去分词，不变化。通常用在 be 之后，常用于否定句。

意思相近