空荡荡 (kōng dàng dàng): trống rỗng

As soon as summer vacation began, all the students went home, and the whole campus was empty—only a few sparrows hopped around on the sports field.

He pushed open the door and found the room completely empty; all the furniture had been moved out, and even the paintings on the wall were gone.

After ten o'clock at night, this shopping street becomes deserted, with only the occasional pedestrian hurrying by.

After Grandma passed away, Grandpa lived alone in the old house and always felt an emptiness in his heart, as if something were missing.

When the performance ended and the audience had all left, the theater was empty, with only a single lamp still lit on the stage.