He's as comfortable talking about how to solve the world's energy problems as he is describing a childhood filled with Erector sets and homemade rockets.
2
清单7显示了一个装配玩具火箭的应用程序(人为设计)。
Listing 7 shows a (contrived) application to assemble toy rockets.
3
这种玩具火箭由几个部分组成，生产每一个部分都需要一定的时间。
The rocket is made of several parts, and each part requires a certain time to produce.
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