Translation of fleißig in German-English

After a wonderful mountain breakfast with a hot chocolate drink one can enjoy the view by looking outside the window and seeing the white landscape, high mountains and the sun reflected in the white powder.
The short story 'Hills like white elephants' is a short story about a relationship between a man and a young girl, based on having sexual encounters. The meaning of this story is not immediately recognizable.
I made plans to visit a surfing contest with a girl that I have met on the first day. We agreed to meet at ten in the morning at her place. I couldn't keep my eyes open and decided to quit.