现在，当我们为一个国家面临更大的挑战而共商对策的时候，我意识到建立这种团结比寻求它更为困难，尤其是在华盛顿。
Now, when it comes to meeting the larger challenges we face as a nation, I realize that finding this unity is easier said than done - especially in Washington.
我比较了解设计模式，但是，我已经开始意识到要讲授好这个概念是多么困难。
I know a good bit about design patterns, but I have come to realize how difficult it is to teach the concepts well.
当我意识到我需要锻炼来恢复我的体型时，我才意识到每天锻炼是多么困难的一件事。
When I realized that I had to exercise in order to get back in shape I didn’t realize how difficult it would actually be to exercise every day.
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