间: gap, to separate, to thin out (seedlings), to sow discontent...
准则: norm, standard, criterion...
贪: to have a voracious desire for, to covet, greedy, corrupt...
论文: paper, treatise, thesis, to discuss a paper or thesis (old)...
饭碗: rice bowl, livelihood, job, way of making a living...
生态: ecology...
错误: error, mistake, mistaken, false, wrong...
成长: to mature, to grow, growth...
走过: to walk past, to pass by...
变质: to degenerate, to deteriorate, (of food) to go bad, to go off, (geology) metamorphism...