翻译 你的表弟每天花多长时间练习弹钢琴（how long开头）
问题描述：
翻译 你的表弟每天花多长时间练习弹钢琴（how long开头）
答
How long does your cousin play the piano every night?
答
How long does your cousin spend in playing piano every day?
答
How long does it take your cousin to play the piano every day How long does your cousin spend playing the piano every day How long does your cousin spend on the piano every day