1·Some projects have found evidence that the constant does vary, while other probes confirmed the constant's constancy. [the Greatest Mysteries in Science].
有的项目已经发现了该常数发生变化的证据，而其他的探测结果则证明该常数的恒常性。
2·I felt this would help with her clear problems with object constancy and attachment.
我感觉这对她的客体恒常性和依恋方面的问题会有帮助。
1·The constancy of human nature is proverbial, as no one believes that a man can fundamentally change his nature.
人性的恒定性是众所周知的，因为没有人相信一个人能够从根本上改变他的本性。