at pains

基本解释

He was at pains to assure them that he, not Hamas, would still do the negotiating with Israel—if, that is, negotiations ever resume.
他痛苦的向这些人保证，他，而不是哈马斯，将继续与以色列磋商—如果，磋商还将继续的话。
The truth is more complicated than that, as T.M. Devine, a professor of history at the University of Edinburgh, is at pains to show.
真相远比那复杂的多，爱丁堡大学历史教授T.M.德文说，他叙述这一切时也充满痛苦。
It will be at pains to let the masses know how the heir-apparent refused special treatment as a youth, instead working himself to the bone on some national task or other.
还将尽力让大众知道储君在年轻时是怎样拒绝特殊对待的，不仅如此，储君还非常努力地执行国家任务什么的。

She wasn't eating. She had terrible stomach pains. She started clenching her jaw and grinding her teeth at night.
But although I've been at pains to say this is the fundamental bad thing about death, I think it's arguable that-- I think one could make the case that this isn't the only bad thing about death, even if we're focusing on why is death bad for me?
但是虽然我一直在努力阐述,这是死亡的基本坏处，我觉得-,人们有理由认为,这不是死亡的唯一坏处，就算我们重点思考为何死亡对我是坏事？
耶鲁公开课 - 死亡课程节选

The usually secretive Pinault (pea-KNOW) seems at pains to put on a public show.
FORBES: Why the man who controls Gucci had to have his own museum.
However, Lula (as he is known) has been at pains not to frighten foreign investors.
ECONOMIST: What's behind the rise in Latin American shares?