He started calculating to obtain the ratio of the two numbers.

They (referring to women or girls) are my best friends.

The background music in this restaurant is very calming.

If you press the browser back button, you will return to the previous page.

I accidentally closed the page, so I used the browser back function to return to the original page.

I started the car after checking the rear-view mirror.

He really suits the slicked-back hairstyle.

Her song was accompanied by an emotional backing chorus.

He suddenly gave me a back hug.

He became an influencer famous for bluebacking.