let me first share with you the experiences of fire-fighters. as steel warriors born of flames, fire-fighters are brave, stiff and ready to sacrifice. in the video, i witnessed how fire-fighters proceeded with difficulty to put out the fire on some warehouses. those warehouses were full of barrels containing benzene. as we all know, benzene belongs to toxic chemicals. to make things worse, there would be explosion at any time due to the pressure caused by the heat and high temperature. thus, a life-and-death fight between the fire and fire-fighters occurred. they were pided into several brigades and jointly endeavored to fight against the fire for the sake of people as well as their property. during the course of the combat, a number of fire-fighters got infected because of the toxic chemicals. they felt dizzy and vomited. however, the obstacles didn’t make those heroes retreat or give up. finally, their constant efforts and strong will power helped them put out the fire thoroughly. their spirit is quite moving and deserves our respect.

　　next it comes to doctors. a doctor is one of the professions that everyone is so familiar with, right? through the series, i’ve learned that there is a woman whose experience differs from others’. in her hospital, she often sees infants rejected by their parents at the door. those poor infants as she said have got cerebral palsy. despite the strong opposition of her family and friends, she determined to adopt any infant who is rejected by parents. in fact, the doctor herself isn’t rich enough. a lot of neighbors think of her to be mad. but there is a firm belief supporting this woman doctor along the way, and that is “all things in their being are good for something.” she shows special preference for those infants and teaches them to talk. with her love and care, those lucky infants are growing up healthily day by day. she hopes that they can contribute for the society in the future. what a wonderful dream. hopefully her dream could come true some day.last but not the least, from those series i also learned the grass-roots society. inside myself, a heart is growing, a heart not only beats for myself but cares for others as well. i once volunteered to be an english teacher in a primary school for children of migrant workers. the volunteer work gave me a precious little chance of saying thanks to people like the children’s parents who construct highways and underground, build up modern skyscrapers and make our cities more and more beautiful. to help the children with their english is what i can do at present to show my gratitude to those unsung heroes. the world may not be fair to them, so privileged and blessed people like me are obliged to do whatever we can to help make their life better. whatever i do for them, i know it can’t be compared with what they have done to improve the quality of life in our cities…

　　all in all, i can not enumerate all great examples of those unsung heroes all at once. here, i would like to say that all of us should salute to them. the salutation represents our appreciation, gratitude and respect from the deep of our hearts indeed.