美国航空航天局希望燃料箱能被及时修复，以便航天飞机能在四月底或者五月初发射升空。
NASA is hoping the fuel tank will be repaired in time for a late April or early May launch.
一些科学家主张春天非是始于三月，四月，或者五月。他们认为当夜晚逐渐变短白天开始变长，就是春回大地之时。
Some scientists claim that spring is not March, nor April, nor May, Instead, they say it is the time when the nights are getting shorter, the days longer.
我和其他人谈过了，他们喜欢五月的第三周或者六月的第二周。
I've spoken to the others and they prefer either the third week of May or the second week of June.
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