Animal experiments by psychologists at the University of Pennsylvania had shown that after repeated failures, most animals conclude that a situation is hopeless and beyond their control.
出自-2016年12月閱讀原文
Instead of looking at the situation from this hopeless angle, look at everything you still have and be thankful for all of the good in your life.
2015年高考英語全國卷1 閱讀理解 七選五 原文
To sum up: a system of conservation based solely on economic self-interest is hopelessly lopsided It tends to ignore, and thus eventually to eliminate, many elements in the land community that lack commercial value, but that are essential to its healthy functioning.