I won't come again yesterday. Don't come yesterday.

We should form the habit of going to bed early and getting up early. We should form the habit of going to bed early and getting up early.

In this world, anyone who can lighten the burden for others is useful. In this world, anyone who can lighten the burden for others is useful.

This is another new and painful fact that we must learn to face. This is a painful new situation that we must learn to face.

With the development of science and technology, more and more people believe. With the development of science and technology, more and more people think that.