參考范文：

"claustrophobia"is recently a word that is no stranger to the people living in big cities: which describes a newly found psychological disease. People who have “claustrophobia? usually find it depressed and unbearable to stay in a confined place for a long time due to different reasons. Hov.-everr the problem is that most of us do have to stay indoor(officeT workshop, classroom, etc.) for the most of the time of the life. Therefore: it is of great necessity to welcome more large public places like parks and squares where the citizens can get close to the nature and get rid of the pressure in working or studying time.
The large public spaces: first and foremost: provide a regular wa.y for the local people to do things of all kinds more than their work. Sporting like jogging or playing badminton, which cannot usually be realized indoor: v.-ill certainly become one of the best choice for the young and old in spare time to get refreshed after a whole dav:s heavy workload. Additionally, parks、vi_t_h plants are also somewhere for people to have a bite to eat during the break while they are busv: probably meeting someone interesting. Last but not the least, establishing as many as those large public places: the image of the city is will be laddered up for the garden is no doubt to be carefully attended. It should be al'vays cherished for the city people to have more green plants.
However, it does not mean those places are without any disadvantages. A recent case centered on the riot instigated by a gang of terrorists in the commercial street of Changsha: leading to several death. It is always those densely populated public places that become the target of terrorists.
In conclusion, it is a great policy for governments to set up as many large public places as possible.

Meanwhhile: they should also make sure that the precaution work has alreadvbeen done.