He especially singled out the United States as a country that has not done its share to help reduce the effects of climate change.

VOA: standard.2009.12.16

That is, share repurchase can change the units of measurement in a security and companies have to decide how leveraged the stock will be, which changes the stock price--leverage, meaning how much debt the company takes on.

即 股票的购回会改变,已发行股票的单位数量,公司需要决定,股票的杠杆效用是多少,杠杆会改变股价,杠杆指的是公司举债的多少

耶鲁公开课 - 金融市场课程节选

The EU leaders will also tackle another highly controversial issue how to share the costs of paying for developing nations to adapt to climate change.

VOA: standard.2009.10.29