寄信(Mailing a Lttr)all larg citis around th world hav many post offics locatd throughout th city, and vn th smallst villag has at last on postal station. you may go to a post offic to mail a lttr. howvr, thr ar mail boxs locatd on vry scond or third cornr in all citis and towns.any lttr or small packag having sufficint postag may b droppd in any of ths mail boxs. if a prson wishs a lttr to b dlivrd mor quickly to th addrss, h may buy a spcial dlivry stamp and dlivry is mad dirctly by th mssngr instad of by th rgular carrir.