这也是有意义的，因为如果ASDI决定为这个项目继续第二阶段的开发，那么分解我们的环境将是浪费时间和资源的。

This also made sense because it would be a waste of time and resources to disassemble our environment if ASDI then decided to proceed with a Phase 2 development effort for this project.

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本文的第一、二部分提出了研究的背景、意义以及国内外对基于项目的学习的研究现状。

This article first, two parts proposed this topic research background, the significance and domestic and foreign to Project-based Learning research present situation.

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