解释:道理和事情既没有永远正确的,也没有永远是错误的。
The fundamental law of the militia is, that it be created, directed and commanded by the laws, and ever for the support of the laws.
系外行星研究的未来在于开发更灵敏的仪器和全球科学家的合作。
The most important victories are the ones that come after the toughest defeats.