Thanks to all of you for being here today, and thanks for inviting me to join you. It's a real pleasure to be part of such a special day. Every time I have a chance to share with teachers, it's a good
Weekly Address: Making America Safer for Our Children （January 01, 2016） 奥巴马每周电视讲话：总统呼吁将美国打造的更为安全 Happy New Year, everybody.I am fired up for the year that stretches out before us.That's because of wh
Secondly: a lot of writers talk about Uber and Airbnb and TaskRabbit and Lyft and so on as part of the sharing economy. 第二点：很多写手谈论起Uber，Airbnb，TaskRabbit，Lyft等企业时，把他们当做了共享经济的一部分。 This is a very powerf
My dear Teachers，fellow students and friends： Good afternoon． As we all know, the earth is a planet almost covered by water，and it is water made every thing on the earth lively．Water is also one of th
