声乐学习是一个长期而艰苦的过程，意志调控的参与使声乐学习者具备了更强的主观能动性。
Vocal learning is a long and strenuous process, and the exercise of volitional control allows vocal learner to have stronger motivation.
语言的学习是一个缓慢且艰苦的试误过程。
Language learning is a slow and tedious process that involves making "errors".
语言的学习是一个缓慢且艰苦的试误过程。
Language learning is a slow and tedious process that involves making "errors".
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