During the background of knowledge economic times, people could hardly learn all knowledge and skill only in the youth period and the full-time school.
在知识经济时代的背景下，人们再也无法在青少年时期、在全日制学校里学完他一生中所需的全部知识与技能。
It's not always easy to form the close bonds of friendships, though. It may be especially hard to develop and keep up friendships when your life is hectic - work demands, family time, school.
然而，建立深厚的友谊并非易事，尤其当工作需要、家庭生活以及学校等因素使得生活忙乱时，想要建立并维系友谊变得很难。
Yet, at the same time, school systems in many areas are facing budget problems.
然而同时，许多地区的学校体系正面临预算问题。
Yet, at the same time, school systems in many areas are facing budget problems.
然而同时，许多地区的学校体系正面临预算问题。
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