移民他国的可能性还会对那些选择留下的人起到积极影响，因为这会鼓励穷国的人们增加教育投入。
The possibility of emigration may even have beneficial effects on those who choose to stay, by giving people in poor countries an incentive to invest in education.
最近的一项民意测验显示，在欧盟五个最大的国家中绝大多数人(比率从英国77%到法国令人吃惊的92%)认为他将对国际事务起到积极影响作用。
In the five biggest EU countries large majorities, ranging from 77% in Britain to a staggering 92% in France, told a recent poll that he would have a positive impact on international events.
印第安那大学的政策专家说，毫不为奇，对学生学习起到最积极影响的正是老师在额外课时传授的知识。
Not surprisingly, the policy experts at Indiana say it is what educators do with the extra time that has the largest effect on student learning.
他说，很多参加调查的人都来自单亲家庭，姐妹关系对这些人起到了非常显著的积极影响。
He said many of the participants had been brought up in families where parents had split and the impact of sisters was even more marked in these circumstances.
另外一个积极影响在于美军执行反恐行动起到的威慑作用。
Another positive consequence is the demonstrated effect of counter-terrorism operations carried out by US soldiers.
但是，在人们开始使用互联网后，互联网对认知能力起到了积极影响作用，改变了大脑编码新信息的方式。
However, when people begin using the Internet, it positively affects cognitive functions and alters the way the brain encodes new information.
但是，在人们开始使用互联网后，互联网对认知能力起到了积极影响作用，改变了大脑编码新信息的方式。
However, when people begin using the Internet, it positively affects cognitive functions and alters the way the brain encodes new information.
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