工(gong)程(cheng)開(kai)荒 Land Reclamation

1.榦(gan)淨(jing)整(zheng)潔：打掃榦(gan)淨、物品(pin)收(shou)拾(shi)整(zheng)潔(jie)

2.空氣(qi)清(qing)新(xin)：沒(mei)有(you)浮沉物(wu)漂(piao)浮，榦淨清(qing)新(xin)

3.煥然一新(xin)：深(shen)度(du)打掃(sao)榦(gan)淨后，室內纖(xian)塵不染(ran)