The practice needs to be difficult, because that's the only way someone can improve.
同时，这样的练习，难度要求要略高，因为只有这样，你才能有所提高。
It needs us to try and practice very hard.
这一问题需要我们不断努力和尝试。
Right, It needs much practice to play single notes.
是呀，单音就是需要多练习的。
It needs us to try and practice very hard.
这一问题必要我们不绝积极和实行。
However, it must be put into practice and needs to have more will power.
但要付诸实践，需要更大的意志力。
It also needs to carry on the unceasing confirmation and wearing in practice.
它还需要在实践中进行不断的验证和磨合。
In practice, however, you typically customize your application to suit your business needs.
不过在实务上，您通常会自订应用程序以符合您的业务需求。
Needs to enhance the actual operation skill unceasingly through the practice.
需要通过实践不断提高实际操作技能。
He needs practice of three months before he is able to obtain the business license.
在他能够拿到营业执照之前，他需要3个月的实习。
He needs practice of three months before he is able to obtain the business license.
在他能够拿到营业执照之前，他需要3个月的实习。
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