年月日用英语怎么表达

　　I'll see you in the new year.

　　新的.一年里再见。

　　The operation could prolong his life by two or three years.

　　这次手术可使他多活两三年。

　　It's been one of those days!

　　这一天真倒霉！

　　I would imagine the job will take about two days.

　　我猜想这工作大概需要两天左右的时间吧。

　　The system was introduced on a trial basis for one month.

　　这个制度已引进试行一个月。

　　The system has been in operation for six months.

　　这个系统已经运行六个月了。