由于非饱和土广泛存在于自然界当中，它与基坑工程是密切相关的。
As the unsaturated soil widely existing in nature, it is closely related to the excavation.
作为父母，我们应该付出一些精力带孩子们到自然界当中去，这将是我们最伟大的事业。
As parents, we should devote some of our energies to taking our kids into nature. This could yet be our greatest cause.
自然界总是处于不断变迁当中，如果这个说法成立的话，那么不稳定性则可能就是造就自然界生物形式多姿多彩的根源。
If it is true that nature is fundamentally in constant flux, then instability may cause the richness of biological forms in nature.
用抗氧化剂——它包含在许多种自然界中最好吃的食物当中。
With antioxidants — which many of nature's best-tasting foods happen to include.
用抗氧化剂——它包含在许多种自然界中最好吃的食物当中。
With antioxidants — which many of nature's best-tasting foods happen to include.
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