(56秒-1分03秒)When one put the monthly cost of renting or buying a house side by side, which one seems cheaper?
                    举一反三
- (1 分30-35秒)As a rule, if one want to cover the cost he initially buy a house, how many years can be enough?
 - (10-27秒)What is the real situation about renting or buying a house in the United States?
 - (28-41秒)If on want to rent a house, one should
 - (1分14秒-1分18秒)The bright side of buying a house is
 - Teaching is a great profession. It is like a ship moving the students from one side to the other side in the 1) __________ of knowledge.
 
