my favourite scientist 写中国古代天文家 张衡的 字数要120

Then factories have to employ considerably more workers because some of them are enjoying happy holiday.That's obviously against the principles of doing business at lower cost and efficiency.　　If we have only three days off in a year,then all the people in our country will be working day after day.No one can squeeze time to visit those tourist resorts leisurely.It goes without saying that the tourist trade and catering industry thus cannot develop rapidly and healthily.