STUDENT: PROFESSOR: Oh, I'm sorry. So it's n minus l minus 1.
学生:,教授:不好意思,这是n减去l减去1.
PROFESSOR: OK. We can have n 4, l 3, and then, sure, we can have m sub l equal negative 2 if l equals 3 What's the second value of l that we can have?
教授:嗯,我们有n4,l3,然后我们有ml等于-2,如果l等于3,l可以有的第二个值是多少?
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