If you ever read the course descriptions of French 115 or chinese language, basic intro to Chinese, they say--I think I wrote it down here, this process of gradual assimilation.

如果你们曾经读过法语115课程描述,或者中文,也就是基础中文课程的介绍,我想我应该在这写下来了,那上面提到,这是一种逐步同化的过程

耶鲁公开课 - 聆听音乐课程节选

My last two only spoke Mandarin,

我最近的两个病人只会说中文，

在医院工作 - SpeakingMax英语口语达人