我们需要长时间的练习来学习如何使用剪刀和如何画画。
We need a long time practice to learn how to use the scissors and how to paint.
写好文章，需要长时间的练习。
To write articles beautifully would require a long time of practice.
为长时间的拍摄练习。
需要记住的是这个技术要较长时间的不断练习。
It is important to remember that this technique does take time to develop.
你的钢琴弹得真好，你每天练习多长时间？
You play the piano very beautifully, how much do you practice every day?
经过长时间没有上色的练习，手震且生硬！
No color after a long period of practice, hand tremors and stiff!
经过长时间没有上色的练习，手震且生硬！
No color after a long period of practice, hand tremors and stiff!
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