Audio problem: Ivy tells Robin that Freeze wants to turn Gotham into "an ice cube" but she's not mouthing those words. (01:38:14)
Audio problem: When Mr. Freeze talks about his plan to freeze the city, he yells out "It'll be winter forever here in Gotham," but if you watch, his mouth doesn't match his voice at all through the entire sentence.
Audio problem: When the telescope is falling and the two people are with Batman, he tells them to grab onto his belt. The audio is terribly clipped.
Answer: There's no way of knowing whether or not she "had the time" to study martial arts. Regardless of her studies, she could have made time to pursue this as an extra-curricular activity. Universities can have classes, clubs, competitions, and student groups for martial arts on campus that anyone can participate in. She may also have been studying it since childhood. She was also a botanist, so even with a rigorous academic schedule, she would likely have more free time than a medical student.
raywest ★