天空海阔999
用心良苦 [ yòng xíng liáng kǔ ] have cudgeled one's brains for all one's pains have expended much care and thought on sth . have given much thought to sth . 真的:Really 在用心良苦上加上“really”就行了。have really given much thought to sth .
无限幻想海浪
感谢你的良苦用心,让我深深感受到被偏爱的滋味。
Thank you for your good intentions, let me deeply feel the taste of being favored.
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叮当木马
其实“良苦用心”是汉语特定产物,在英语里应根据不同的语境翻译:design, diligence, endeavor,set phrase: cudgel one's brain, have really given a lot of thought to the matter