如何在AngularJS中向嵌套数组添加对象?

I'm new to AngularJS. I've researched the theory behind ng-repeats but I cannot find any good examples of 2-way data binding or object creation for nested ng-repeats. I understand that the syntax has changed in recent versions. I'm using 1.1.5. I'm new to AngularJS. I've researched the theor