C＃ List. Can foreach temporarily / at any time terminate a loop?

C# List.ForEach Can temporarily / Stop the loop at any time ？ This question really stumps me

int len = 0;

List<string> aaa = new List<string>(){ "aaa", "bbb" };

aaa.ForEach(s => len += s.Length);

Look up the , The answer is You can't

If you want to temporarily exit , have access to foreach keyword

int len = 0;

List<string> aaa = new List<string>(){ "aaa", "bbb" };
foreach(var s in aaa)
{
    len += s.Length;
    break;
}