慢速英语:NASA Developing Food Bars for Mars Flights

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短语讲解：

1. “When you think about multi-week missions in Orion, having just one package for breakfast items for crew will help us limit the space we need to store them.”

think about 考虑…; 捉摸…
例句：I'll have a think about that
我会考虑考虑的。

2. Sometimes Americans eat a protein bar instead of a meal.

instead of （用…） 代替…， （是…）而不是…
例句：A spirit lamp burns spirits instead of oil.
酒精灯里点的不是油而是酒精。

3. So we’ve had to go design something that will work for the crew, while trying to achieve a multi-year shelf life,” said Takiyah Sirmons, a food scientist

work for 受雇于; 为…而工作
例句：He has been doing this sort of work for years.
他干这一行有年头了。

4. For other meals, Orion’s crew will be able to choose from meals similar to what the ISS crew members eat.

be able to 能够; 能，会
例句：He will be able to take up his normal routine shortly.
他不久就能处理日常事务。

5. The Orion crews will have a food warmer to heat up their meals.

heat up 变热; 加[煮]热…; 沸腾
例句：You'd better heat up the tomato soup.
你最好把蕃茄汤热一下。