因为这些留守儿童容易发生事故，易产生心理、行为和学习问题，所以老师应该承担额外的照顾责任，并且应该给他们提供食宿。
Vulnerable to accidents and to developing emotional, behavioral and learning problems, their care requires additional responsibilities from teachers and the provision of boarding facilities.
嫉妒心理是青少年容易产生的一种心理问题，其产生的原因是复杂的，带来的危害是消极的。
Jealous psychology is a kind of psychological obstacle that produces in the adolescence, its reasons are complicated, and its harms are negative.
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