1. One obvious impact is the radical alteration of the land surface. 一种显而易见的影响是大地表面剧烈的改变。
2. Contains in it the germ of the future when there is no alteration. 其中是包含了未来的种子，可那时候，它还没有改变。
3. Alteration is very extensive in some areas and serpentinites are common in Greece. 在一些地区蚀变作用非常广泛，在希腊蛇纹岩是常见的。
英英解释
n.
1. an event that occurs when something passes from one state or phase to another
2. the act of making something different (as e.g. the size of a garment)
3. the act of revising or altering (involving reconsideration and modification)
网络释义
alteration 退换;
改动;
改建;
变质;
capital alteration 资本变更;
资本变更 -------[光年网原创;
资本变更 财经;
资本变卦;
