1, a moment: for a while, the description time was extremely short.

2, half a second: a very short time.

3. Situation: Situation.

4. Blinking: When I first saw it, I thought it was beautiful, but after watching it for a long time, I felt it was not beautiful or just so-so.

5, a moment: a moment.

6. How long: That time is not long.

7, instant: an instant.