可以说，侵权法可能是民法中范围最广、又最缺少稳定性的领域。

Tort law is perhaps the broadest and most volatile area of civil law.

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德育，作为一门学科的性质和内容常常缺少稳定性，在更多时间里，它是在执行任务或解决问题而不是专业研究。

As the nature and content of discipline, moral education, is always short of stability. More often, it is carrying out a mission or solving a problem but not doing professional research.

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再则缺少提供稳定性的垂直表面是所有全翼设计的致命弱点，过去是，现在也是；——这导致经常侧翻，使快速射击和准确轰炸都变得更为困难。

For another, the lack of stabilizing vertical surfaces-a bane of all-wing designs, past and present-resulted in frequent lurches, making sharp shooting and accurate bomb delivery that much harder.

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