4.Layout drawing 总布置图纸
A: What's the importance of layout drawing?
B: The layout drawing shows a product in its environment.
A:总布置图纸的重要性是怎样的?
B:总布置图纸是描述在工作环境中的产品。
5.Part 零件
A: How many parts do you have in this seating system?
B: Two hundred fifty seven to be exact.
A:你这个座椅系统包含多少个零件?
B:精确的讲有257个。
