无边无际 (wú biān wú jì): boundless; limitless

Standing on the endless grassland, I felt the sky and earth were boundless, and my mind suddenly opened up a lot.

Lying in the desert at night, I looked up and saw a boundless starry sky; every star shone like a diamond.

He sailed his small boat on the boundless sea, and for several days he couldn't see any trace of land.

The children ran across the boundless snowfield, their laughter carrying far into the distance.

Facing the boundless primeval forest, the expedition team decided to stop first, study the map carefully, and then move on.

Her dream is to fly over the boundless Pacific Ocean in a hot air balloon and record every cloud with her camera.