It even coaxed a rare essay out of Bill Gates, who objected to Ridley's claim that Africa needs industrialization rather than aid (it needs both, Mr. Gates said).
本书还让比尔·盖茨写了一片短文，文中他驳斥了里德利“非洲需要工业化而非援助”的主张，盖茨先生说，非洲两者皆需要。
You can often do both at the same time.
通常你是可以两者皆得的。
The four teams managed to meet either the fuel burn or the noise goal with their concepts, not both.
四个团队试图使燃油消耗或者噪音目标满足NASA的概念，但不是两者皆满足。
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