What is assimilation? 什么是同化现象?请帮忙给出正确答案和分析 谢谢！

正确答案：It is a process by which one sound takes on some or all the characteristics of a neighboring sound。a term often used synonymously with“coarticulation”．If a following sound is influencing a preceding soundit is called“regressive assimilation”；the converse processin which a preceding sound is influencing a following SOundis known as“progressive assimilation”．一个音获得临音某些或全部特征的过程与“协同发音”同义。如果后面的音影响前面的音这叫做“逆同化”；反之如果前面的音影响后面的音则被称为“顺同化”。
Itisaprocessbywhichonesoundtakesonsomeorallthecharacteristicsofaneighboringsound。atermoftenusedsynonymouslywith“coarticulation”．Ifafollowingsoundisinfluencingaprecedingsound,itiscalled“regressiveassimilation”；theconverseprocess,inwhichaprecedingsoundisinfluencingafollowingSOund,isknownas“progressiveassimilation”．一个音获得临音某些或全部特征的过程,与“协同发音”同义。如果后面的音影响前面的音,这叫做“逆同化”；反之,如果前面的音影响后面的音,则被称为“顺同化”。