Good afternoon ,faculty students parents and friends.
教职员工们，同学们，家长们，朋友们，下午好。
I am truly honored and grateful to speak at the commencement for the University of Maryland, Class of 2017.
非常荣幸能在马里兰大学2017届毕业典礼上演讲。
People often ask me: Why did you come to the University of Maryland?
人们经常问我：你为什么来马里兰大学？
I always answer: Fresh air.
我总是回答：清新的空气。
Five years ago, as I step off the plane from China, and left the terminal at Dallas Airport. I was ready to put on one of my five face masks, but when I took my first breath of American air. I put my mask away.
五年前，从中国来的时候，我准备了5个口罩。从飞机上下来，离开达拉斯机场候机楼时，我正准备戴上口罩时，吸入了第一口美国的空气，然后我将口罩收了起来。
The air was so sweet and fresh, and oddly luxurious.
这里的空气是那么的清新甜美，显得格外的奢侈。
I was surprised by this. I grew up in a city in China, where I had to wear a face mask every time I went outside, otherwise, I might get sick.
我深感意外。我在中国的一个城市长大，从小出门都得戴口罩，否则就会生病。
However, the moment I inhaled and exhaled outside the airport.
然而，在机场呼吸到这里空气的那一刻。
I felt free.
我感受到了自由。
No more fog on my glasses, no more difficult breathing, no more suppression.
我的眼睛上不再有雾，呼吸不再困难，也没有了压抑。
Every breath was a delight. As I stand here today, I cannot help, but recall that feeling of freedom.
每一口呼吸都是愉悦的。今天我站在这里，仍然忍不住回想起那种自由的感觉。
At the University of Maryland, I assume feel another kind of fresh air for which I will be forever grateful — the fresh air of free speech.
在马里兰大学，另一种清新的空气也令我感怀不已——言论自由的空气。
Before I came to United States, I learned in history class about the Declaration of Independence, but these words had no meaning to me— Life, Liberty and the Pursuit of happiness.
来美国之前，我在历史课上学到了独立宣言，但“生命、自由和追寻幸福”这些词句对我而言毫无意义。
I was merely memorizing the words to get good grades.
