聽力每日練習(xí) listen 2770 An?upgrade

1--We need to take the accounts system offline to carry out the upgrade. But don't worry, it won't cause too much inconvenience. We're going to do it over the weekend.
 
2-- How long will the system be down for?
 
1-- We'll be taking everything offline in about two hours' time. It'll be down for a minimum of twelve hours. If everything goes according to plan, it should be up again by 6 pm on Saturday.
 
2--That's fine. We've allowed forty-eight hours to be on the safe side.
 
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注解：
 
1.upgrade升級
2.inconvenience不便
3.minimum 最小值
 
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譯文：
 
1--我們需要把這個(gè)報(bào)賬系統(tǒng)下線進(jìn)行升級但是別擔(dān)心，不會帶來太多不便的。我們在本周末進(jìn)行升級。
2--這個(gè)系統(tǒng)多久能夠下線？
1--全部下線需要兩個(gè)小時(shí)的時(shí)間。至少需要12小時(shí)才能弄完。如果一切都在計(jì)劃之中，在星期六應(yīng)該可以再次上線。
2--行。我們要求四十八小時(shí)安全可靠。