Here's a breakdown:
* CH: Like the "ch" in "chair" or "church".
* Y: Like the "y" in "yes" or "you".
* nuh: Like the "uh" in "but" or "sun".
It's important to note that the pronunciation in Chinese (Mandarin) is quite different, with the "Ch" sounding more like a "ch" in "check" and the "a" sound being longer.