英语语法分析

Set the input data as Haydn.

设置输入数据为Haydn。

Mozart usually keeps his surfaces smoother than Haydn, achieving a more polished suavity.

而莫扎特较海顿更注重外在的流畅性，以期达到更优美的温和感受。

Haydn and Mozart were both Austrians who spent much of their professional lives in Vienna.

海顿与莫扎特均出生于奥地利，且专业生涯主要集中于维也纳。