作者以拨浪鼓为例,说明了在玩具制作过程中,材料的使用具有连续性。
The author uses the example of rattle to show that in toy-making there is a continuity in the use of materials.
这些措施还包括在2025年之前减少其对环境的影响、耗水量和包装材料的使用。
Initiatives also include efforts to reduce its environmental impact, water consumption and materials used in packaging by 2025.
对这些材料的使用确实涉及了一些固有的问题。
The use of these materials does involve some inherent questions.
So let me turn now to just some of the administrative, organizational details of the course, the secondary readings that we'll be using.
好现在让我来另外讲一些关于这门课程的管理及,组成成分方面的细节,一些我们将要使用的阅读辅助材料。
And while I'm at school in class, I can use the e-books of the courses that I'm studying.
在学校上课的时候,我也可以使用那些我修的课程的电子材料。
This material will be necessary to do the listening exercises for the course, which is sort of the backbone of the course.
做听力练习时我们必须使用这些材料,听力训练是课程的核心内容
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