Carry or Fetch? Bring or Take?

- To Carry means only to transport, without any relation to the speaker's position.
She carried her bags from the train to the taxi.

- To Fetch means to go from the place of speaking, find something and bring it back to the place of starting.
Please, fetch me some coke when you go there to buy yours.

- To Bring means to carry to the place where the speaker is.
The postman brought a letter to her yesterday.

- To Take means to carry from the place where the speaker is.
The mother took away the knife from the baby.