Let's break down the expression step by step:

$\left( \frac{6}{3} \right)^2 - 1 - 3^3$

Step 1: Simplify the terms inside the parentheses

$\frac{6}{3} = 2$

Step 2: Square the result

$2^2 = 4$

Step 3: Evaluate the powers

$3^3 = 27$

Step 4: Substitute the results into the expression

$4 - 1 - 27$

Step 5: Simplify the expression

$4 - 1 = 3$ $3 - 27 = -24$

Thus, the final answer is:

$\boxed{-24}$

Would you like further details on any step or have other questions?

Here are 5 related questions:

1. What is the value of $(8/4)^2 - 2 - 4^2$?
2. How would you simplify $(9/3)^3 - 5 + 2^4$?
3. What is the cube of $2$ and how does it compare to $3^3$?
4. How would you approach evaluating expressions with exponents and parentheses?
5. What are some common mistakes when working with order of operations?

Tip: Always follow the order of operations: parentheses, exponents, multiplication/division (left to right), addition/subtraction (left to right).