求翻译：音色是小提琴演奏表现力的核心要素，因此音音色的训练时小提琴学员们在对该乐器的学习研究中必不可少的训练过程。而揉弦这一技巧的巧妙使用，又能够令小提琴的音色更加圆润，丰满，更是将小提琴的那接近于人声的音色展现在听众面前。是什么意思？

The sound is a violin played the expressive core elements of violin students in learning the instrument training when the tone sounds essential training process. Vibrato clever use of this technique can make the violin sound is more mellow, full, but also show that close to the vocal sound of the vi

Sound is a violin performance of core elements, and therefore a violin during the training participants in the study of the musical instruments in the study of the essential process of training. A good rub and the clever use of the skills, and to be able to make the violin sound more rounded breasts

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Timbre is the core element in violin performance, sound timbre of violin students training in the training indispensable to the study of musical instruments in the process. Ingenious use of vibrato, a skill, and more mellow timbre of violins, fullness, it is that close to the vocal timbre of violin

The timbre is the violin performance expressive force core essential factor, therefore time sound timbre training violin students in to this musical instrument study research in essential training process.But rubs string this skill the ingenious use, also can make the violin the timbre to be clearer