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。
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。
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