For example, in the past, we communicate by mail must wait a week and still be charged postage stamp, but nowadays we can communicate over the Internet. Both fast and economical than the letter.
For example, in the past we were contacted by mail have to wait a week and also have to pay stamp but now we can communicate with each other via the Internet. Both quick and economical than a letter
For example, in the past, we communicate by letter to wait for a week and still have the stamp แต่ในปัจจุบัน we can communicate via the Internet. Both fast and economical than the letter.