These days I see our school corridor inside some things, listen to my classmates said that our school installed HDB CCTV, the HDB CCTV is very good, I feel very good, that day I saw the security room inside the HDB CCTV video, really clear. HDB CCTV, this is really too good, now as long as there is what a look at this HDB CCTV at a glance, this HDB CCTV is really too good, let everyone in class becomes very orderly. Parents let us have classes here, the family is also very reassuring. This HDB CCTV, we all feel very good, everybody in the class are very active now, everyone is absent. This HDB CCTV is pretty good.