张国兴是我家所住的国防大学二号院的一个水管工,40多年来,不怕脏,不怕苦,不怕累,经常钻地沟、修暖气、掏厕所、通管道,为居民排忧解难。他爱岗敬业,埋头苦干,认真负责,出色完成任务,多次立功受奖。他曾荣立二等功一次,三等功三次,二十多次被评为先进工作者、最佳服务员、服务? Zhang Guoxing is a plumber who lives at No. 2 Hospital of National Defense University in our home. Over the past 40 years, Zhang Guoxing is not afraid of being dirty and not afraid of suffering. He often drills ditches, repairs heating gas, digs toilets and conducts pipelines to solve problems for residents. He loves his job, work hard, be responsible, perform his duties well, and make meritorious awards. He once won the second class work, the third class work three times, more than 20 times was rated as advanced workers, the best waiter, service?