And then in later experiments, we found the opposite, 而在随后的实验中，我们发现了相反的情况， that fir was sending more carbon to birch than birch was sending to fir, 花旗松给纸皮桦送的碳比纸皮桦给它的碳多， and this was because the fir wa
January 26, 2008 THE PRESIDENT: Good morning. On Monday night, I will address the American people about the state of our union. I will report that over the last seven years, we've made great progress
So I'm not saying, "Be like us", and "We're perfect role models", because we're not, but we just want to help represent girls in a way that shows those different dimensions. 所以我不是在说，“学我们的样子” 和“我们是完美的典
