But some have trouble with impulsivity and self-control, problems that, if left unchecked, can lead to more serious long-term issues that can even cross the line into crime and delinquency.

• 但有些孩子会受到情绪冲动、自我控制的困扰，这些问题如果没有及时发现、解决，会导致长期的严重问题，甚至是少年不法行为和犯罪。