内文：
the direction of the relationship between emotional responses and coping
strategies is not clear, and the relationship is not always constant.
Some studies during the SARS epidemic have found that the relationship
beteween them is age-specific. So, the relationship between nurses'
coping strategies and emotional response during a major infectious
disease such as COVID-19 need further research to clarify.
请问第四行的 them 是指 emotional reponses 和 coping strategies吗?
请问第四行中间的 age-specific是什么意思?
谢谢大家。