如何用单词分割字符串

我有下一个字符串

string example="This is a string and i want to split by [this], it's posible?";

如果找到某个单词或字符串，有没有任何方法可以让我拆分字符串，比如"[this]"或"split"

string splitter="[this]";
string1="This is a string and i want to split by ";
string2="[this], it's posible?";

或者在另一个例子中：

    string splitter="split";
    string1="This is a string and i want to split ";
    string2="by [this], it's posible?";

最好的方法是什么？

string[] splitted = example.Split(new[] { splitter }, StringSplitOptions.None);

string[] splitted = example.Split(new[] { splitter }, StringSplitOptions.None)
                           .Select(value => value.Trim())
                           .ToArray();