gōng / sī / yǐ / jīng / zhèng / shì / xuān / bù / xīn / jì / huà / bǎn / shàng / dìng / dīng / bú / huì / zài / gǎi / biàn / le

公司已经正式宣布新计划，板上钉钉不会再改变了。

The company has officially announced the new plan, and it will not change.