工(gong)程(cheng)開荒(huang) Land Reclamation

1.榦(gan)淨(jing)整潔：打(da)掃(sao)榦(gan)淨、物(wu)品(pin)收(shou)拾(shi)整(zheng)潔(jie)

2.空(kong)氣清(qing)新(xin)：沒(mei)有(you)浮沉物漂(piao)浮，榦淨(jing)清(qing)新

3.煥(huan)然(ran)一新：深(shen)度打掃(sao)榦淨后，室(shi)內(nei)纖(xian)塵不(bu)染(ran)