奶奶和平怎么说用英语

"奶奶" is the Chinese word for "grandmother." You can say "grandmother" in English to refer to your grandmother. "平" is the Chinese word for "peace." You can say "peace" in English to refer to a state of tranquility or quietness.
So, to say "奶奶和平" in English, you can say "Grandmother and peace." This would likely be understood to mean that your grandmother is at peace or that she brings peace to your life. However, without more context it is difficult to say exactly what you are trying to communicate. If you provide more information about what you are trying to say, I can try to help you translate it more accurately.