A virgin material can be "started" from 0 into either the first or the third quadrant.
一个没有用过的材料可以从0点“开始”进入第一或第三象限。
A virgin material can be "started" from point 0 into either the first or the third quadrant.
一个没有用过的材料可以从0点“开始”进入第一或第三象限。
The third quadrant (reckless and inadvertent) is the most troubling, because these developers incur debt without realizing it.
第三象限（轻率、无意）是最麻烦的，因为开发人员欠债了，但是他们并没有意识到。
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