shì / qíng / fā / zhǎn / dào / zhè / yī / bù / mù / yǐ / chéng / zhōu / zài / hòu / huǐ / yě / méi / yǒu / yòng / le

事情发展到这一步，木已成舟，再后悔也没有用了。

Things have reached this point, and what is done cannot be undone, so there is no use regretting it.