两种型号可以使用：标准的和扩展的。
这两种型号的工业在本世纪内，并存有不同影响，设计的含义。
These two models of industry coexist in this century and have different implications for the meaning of design.
没问题。有两种型号的车：八座的和十六座的，你想要哪种呢？
No problem. There are two size of the van, for eight passengers and for sixteen. Which one will you need?
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