The visit has been welcomed as a positive change in Washington's Burma policy, from one of isolation to engagement.

VOA: standard.2009.11.02

That's a very positive change in the food environment, so we'll talk about those sort of changes.

这是食品环境的一项积极改变,我们将会谈到这一类的改变

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Not only they have failed in bringing about positive change, they actually brought about negative change.

不仅没有实现正面的改变，实际上是带去了负面的改变。

哈佛公开课 - 幸福课课程节选

"It appears that according to those numbers that the Russians are the least receptive and most skeptical about positive change coming out of the Obama administration,"

VOA: standard.2009.07.06

This was thought by many to be a positive change but in game rich environments where there was a lot of meat available, people could actually get many more calories per hour-- that is secure more food that would help fend off starvation compared to what they could get for people cultivating food.

很多人都认为这是一个积极的改变,然而 在那些富饶地区,获取肉类轻而易举,同样时间内,人类可以获取更多能量,相对那些靠种植获取食物的人类来说,这些地区有足够多的食物来抵御饥荒

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Ronald White says the garden is a step toward positive change.

VOA: standard.2010.03.10

Some of this can be done if consumers make different choices in what they eat, but some can be silent changes too, so Frito-Lay taking the Trans fats out of their products and switching them with a healthier fat is a silent change that could have a positive impact on public health.

有些只要消费者选择其它的食物即可做到,但也有些变化是悄无声息的,菲多利将其产品中的反式脂肪,替换成更健康的脂肪就并未声张,这对大众健康有着积极的影响

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

"The U.S.presidency now approaches and presents a positive change.

VOA: standard.2009.03.28

We are going to spend a whole week talking just about change, nothing directly related to positive psychology.

我们将用一周的时间讲改变，和积极心理学一点直接的关系也没有。

哈佛公开课 - 幸福课课程节选

And that if we want a positive earth for future generations, we all need to make commitments to be change agents so that we don't destruct our natural resources."

VOA: special.2010.01.21

She says U.S.engagement with Burma's military government, known as the State Peace and Development Council, could be positive, but only if Washington remains firm in pushing for change.

VOA: standard.2009.09.24

And also she sees people making bad comments about celebrities, she leaves nice messages, because when people see positive comments they are more likely to stop saying bad things and change their attitude.

VOA: standard.2010.03.30