我不必再说了，如果你不能按我说的做，你要承担一切后果。

I needn't add that if you fail to do as I ask, you will suffer the consequences.

《柯林斯英汉双解大词典》

当然他们得承担一切后果。

Naturally they will have to bear all the consequences.

youdao

当然他们将承担一切后果。

You will have to abide by the consequences.

youdao