舞蹈、鼓掌、兴奋、欢叫、跳跃、飘飘荡荡、滚滚向前。
Psychology must be a purely descriptive science.
The next industrial revolution will be defined by how we manage our resources.
我不数我的仰卧起坐。只有当它开始疼的时候,我才开始数。