"I hope we do it at some point but my principle in public policies is not kind of to meet celebrities," added the prime minister, a Conservative.
身为保守党人士的哈伯说：“以后有机会，可以见一下。但我在公共政策方面的原则并不是会见名人。”
Counter-intuitively, Postel's robustness principle (" be conservative in what you send, liberal in what you accept ") often leads to deployment problems.
跟直觉恰恰相反，Postel的健壮性原则(“严于律己，宽以待人”)常常导致部署出现问题。
The principle of conservation of momentum holds whatever the nature of the internal forces, conservative or not.
动量守恒原理则不管内力的性质如何（保守的或非保守的）都能适用。
The principle of conservation of momentum holds whatever the nature of the internal forces, conservative or not.
动量守恒原理则不管内力的性质如何（保守的或非保守的）都能适用。
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