求翻译：因此，塑造一种良好的语音环境至关重要。而多媒体因其具有的多通道输入、交互性强等特点，可以帮助教师创设一种良好的英语听、说环境，示范正确的语音和发音，提供生动活泼、适于幼儿的语言材料及动画场景。因此，要为幼儿创设自由、自主、丰富、完整的双语人文环境和适宜的双语物质环境，从而有效地促进幼儿的双语学习。是什么意思？

Therefore, shaping the voice of a good environment is essential. Multimodal input, interactive multimedia, because of its strong features, can help teachers create an environment good English ability in listening, speaking, model correct pronunciation and pronounce, provides lively, suitable language materials for children and animation scene. Therefore, for child care and the creation of free, independent, rich and full of bilingual human and appropriate bilingual material environment, so as to effectively promote bilingual learning in young children.