You see, you can take out one or two hub trees, 你们看，我们可以拿走一两颗中心树， but there comes a tipping point, 但这样就会达到森林承受极限了， because hub trees are not unlike rivets in an airplane. 因为森林里的中心树就像是飞机里的铆钉。 You can t
Remarks of President Barack ObamaWeekly AddressSaturday, April 18, 2009 It’s not news to say that we are living through challenging times: The worst economic downturn since the Great Depression.
THE PRESIDENT: Thank you! Hello! (Applause.) Thank you. Thank you. Well, hello, Philadelphia! (Applause.) And hello, Masterman. It is wonderful to see all of you. What a terrific introduction by Kelly
September 8, 2007 12:16 P.M. HST THE PRESIDENT: I appreciate the Governor of this beautiful state, Admiral Keating, his wife, for their hospitality. The Secretary and I have just landed. We've come fr
