“大钢琴”的拼音为：dà gāng qín...

钢琴家在一架大钢琴上弹了几首乐曲.The pianist played several pieces of music on a grand piano.有时他在摄影棚里放一架大钢琴.He sometimes has a grand piano on the set.他们小心翼翼地把大钢琴搬进门里去.They coaxed the grand piano through the door....

“大钢琴”的英语可以翻译为：grand，grand piano ...