I have visited Buckingham Palace.

My favorite classic novel is Water Margin.

Where did you buy this electric appliance?

There are beautiful fields near my house.

This area is covered with salt pans, making it suitable for making salt from seawater.

He started writing his autobiography.

Reading his biography, you can understand how difficult his life was.

A positron is a particle that carries the opposite charge of an electron.

My landline phone broke down recently.

The greater the electric potential difference, the faster the current flows.