经过多年的分离，这些移民的后代开始重新融入当地文化。

After years of separation, the descendants of these immigrants began the ___reassimilation into the local culture.

在快速口语中，辅音经常发生同化，变得与邻近的元音更相似。

In fast speech, consonants often undergo ___reassimilation to become more like nearby vowels.