1) Using the Pen tool, drag to create the first smooth point of the curved segment.
2) Adjust the position of the Pen tool and drag to create a curve through the second smooth point.
3) Adjust the position of the Pen tool to where you want the second curved segment to end, and then drag a new smooth point to complete the second curved segment.
4) Use the "Secondary Selection" tool to select the smooth point to be adjusted (i.e. the second smooth point) so that the direction line appears, then hold down the Alt key, click the direction point, and drag its direction line to the opposite end to set the slope of the curve to be adjusted. Release the keyboard key and mouse button to complete the drawing. This process converts the smooth point into a corner point by splitting the direction line.

A. Drag a new smooth point B. Complete the second curved segment C. Hold down the Alt key while dragging to split the direction lines and swing the direction lines upward