This company was saved by an investor who appeared as a white knight.

He seemed like a white knight who would save our village.

There is an important meeting today.

I plan to go to a music gathering with my friends this weekend.

We are planning to meet at the park tomorrow.

I prepared the documents before the meeting started.

He has a very passive personality.

Every weekend, I do volunteer work at a local shelter.

He is known as an activist for environmental issues.

Action potential is an important mechanism for nerve cells to transmit information.