Weekly Address: Time to Lift the Minimum Wage and Give America a Raise 每周演讲：是提高最低工资和给美国加薪的时候了 Hi, everybody. 大家好！ Restoring the idea of opportunity for all requires a year of action from all of us. Wh

It is a great honour to be with you here this evening for these very special Place2Be Awards. Tonight, we are celebrating the truly remarkable work taking place across Place2Be schools in support of c

Remarks of President Barack ObamaWeekly AddressOctober 24, 2009Washington, DC All across America, even today, on a Saturday, millions of Americans are hard at work. They’re running the mom and p

It has now been three months since the tragic events in Newtown, Connecticut. Three months since we lost 20 innocent children and six dedicated adults who had so much left to give. Three months since

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