奥巴马告别演讲

WASHINGTON — President Obama will strike an optimistic tone in his farewell address to the nation on Tuesday, calling on the American people to work together as citizens as he prepares to rejoin their ranks.

华盛顿——下周二，奥巴马总统将在告别国家演讲中展现出积极的态度，呼吁美国人民作为公民一同努力，而他自己也将“告老还乡”成为他们中的一员。

Optimistic tone 是主基调。