1 N-UNCOUNT （气候等的）侵蚀，腐蚀 Erosion is the gradual destruction and removal of rock or soil in a particular area by rivers, the sea, or the weather. （气候等的）侵蚀，腐蚀
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As their roots are strong and penetrating, they prevent erosion.
它们的根十分粗壮而且扎得很深，从而避免了受侵蚀。
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...erosion of the river valleys. [+ of]
河谷的侵蚀
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...soil erosion.
土壤侵蚀
SYN disintegration, deterioration, corrosion, corrasion
2 N-UNCOUNT （权威、权利、信心等的）逐渐丧失，削弱 The erosion of a person's authority, rights, or confidence is the gradual destruction or removal of them. （权威、权利、信心等的）逐渐丧失，削弱
3 N-UNCOUNT （支持的）减少;（价值的）降低;（货币的）贬值 The erosion of support, values, or money is a gradual decrease in its level or standard. （支持的）减少;（价值的）降低;（货币的）贬值
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