可移植性和良好的设计通常是密不可分的，从而使得这些决策的好处在整个操作系统中显而易见。
Portability and good design often go hand in hand, making the benefits of these decisions evident throughout the operating system.
多年以来，软件工程师已经学习了很多有关可移植性的问题，其中的很多知识已经渗透到了语言的设计以及标准编码实践当中。
Over the years, software engineers have learned a lot about portability, and much of that knowledge has filtered into language design and standard coding practices.
因为认识到一种规格并不能适合所有设备，所以小心地设计J2ME以在可移植性和可用性之间取得平衡。
Recognizing that one size does not fit all, J2ME has been carefully designed to strike a balance between portability and usability.
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