Meaning of TAKE INTO ACCOUNT and ACCOUNTABLE FOR

How do you use this word please?

  1. Take into account
  2. accountable for

Thanks

English Teacher (Thai national) in Phuket

You have to take travel time into account.
= You have to consider travel time.

We didn’t take into account the cost of materials.
= We didn’t include the cost of materials in our calculation.

If anything goes wrong, I am accountable.
= I’m the one who suffers, has a problem, has to answer if anything goes wrong.

The law holds parents accountable for their children’s crimes.
= If the child commits a crime, his parents will be punished.