Under what circumstances can it be used in the future?

Laughing at the future can be used when two people are separated, or when a group of people are scattered, usually in graduation season.

Because the expectation of the future is a vision of the future, it is usually used in this situation when two people are separated, or when a group is about to disperse, that is, when they graduate.

The fleeting laughter and hopeful future can also be used in making friends. Because everyone wants their future to be better and better, in the case of sending a circle of friends, you can send a picture, and then the copy can be laughed at by the time, and the future can be expected.

There are many situations that can be thrown with a smile in the future. But it needs to be used in different occasions, so don't use these two words in inappropriate occasions to avoid unnecessary misunderstanding.