He practice playing the piano every day.
他每天都要练习弹钢琴。
A small number of girls practice playing the piano every day.
一小部分女生每天练习弹钢琴。
I have to practice playing the piano for two hours twice a day.
换一下语序好些，我必须每天练两次钢琴，一次两个小时。
Playing the piano well requires a lot of practice.
要弹好钢琴就得多练习。
I practice singing and playing the piano every day.
我每天都练习唱歌和弹琴。
I practice singing and playing the piano every day.
我每天都练习唱歌和弹琴。
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