I often take exercise. Why only yesterday I had breakfast in bed.

The psychologist must be a dispassionate observer.

The play was a great success, but the audience was a disaster.

You don't need a perfect voice to move people; you just need to sing from the heart.

我们不能改变过去，但我们可以改变对过去的看法。

Drones in the future will be as ubiquitous as smartphones are today.