1. She retains a clear impression of the incident.
她对那件事印象很深，记得很清楚。

2. He impressed no one by his bluster.
他的大话没有给任何人留下印象。

3. Astrikingly attractive or impressive person or thing,
引人注目的人或者物，或令人印象深刻的人。

4,. We are under the impression that…
我们的印象是…

5. A most impressive piece of writing.
一篇给人印象很深的文章。