Inseveralofthestudies,whenstressed-outfemaleratshadtheirovaries(thefemalereproductiveorgans)removed,theirchemicalresponsesbecameequaltothoseofthemales.stressed-out,stress加ed然后又加个out是什么意思啊?怎么样理

Question

In several of the studies,when stressed-out female rats had their ovaries (the
female reproductive organs) removed,their chemical responses became equal to
those of the males.stressed-out ,stress加ed然后又加个out是什么意思啊?怎么样理解?

Answer 1

stressed-out
adj.不堪重负的；承受巨大压力的
stress out 过度劳累；紧张
可以理解为,stress out 的形容词形式.因为out是介词,体现不出来,所以把ed加在stress上.