That may help explain why children's earliest memories are so unstable: Their neural traces are weak and shallow, whereas the few memories we revisit as we get older lay down stronger traces.
这可能会有助于解释儿童最早的记忆为何如此不稳定：他们的神经痕迹又弱又浅，而随着我们越来越大，不断回访的那些记忆会留下更深的痕迹。
Frequent shallow watering can force roots to come up to the soil surface in search of a drink, encouraging a plant to develop a weak structure.
频繁的浅度浇水会让根泥土表面伸展以寻找水，纵容了植物产生不良好的结构。
The Permian high quality reservoir was formed in the western thrust belt and underwent weak compaction with shallow burial and dissolution.
研究发现，西缘逆冲带砂体经历了浅埋藏弱压实和溶蚀作用，储集物性最优；
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