练琴非常刻苦，有时候一练就是大半天，还要天天坚持。

To practice very hard, and sometimes a practice is big half day, and every day persistence.

youdao

练琴非常刻苦，有时候一练就是大半天，还要天天坚持。

To practice very hard, and sometimes a practice is big half day, and every day persistence.

youdao