简单释义：

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adj. 需细心的；辛苦的；需专注的

n. 苦干

网络 苦干的；费力的；煞费苦心的

完整释义：

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adj.

1.(不辞)劳苦的,苦干的,辛勤的;费力的
2.煞费苦心的
3.苦干;费力
4.精心的
5.细致的
6.不辞辛劳的

n.

1.苦干,刻苦,煞费苦心
2.埋头苦干
3.辛苦

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例句：

1. Very easy to balancing painstaking effort they earn, accumulated wealth will be free to someone else?
   好不容易耗费大量心血赚来的钱，积累起来的财富就白白地送给别人吗？

2. Few flavors in the world can match that of champagne, which is a truly unique taste, created by a complex and painstaking process.
   世界上几乎没有哪一种饮料的口味可以与香槟的口味相媲美，这种独特的口味是通过复杂而艰辛的酿造过程而获得的。

3. From collection to collation, they did a great deal of painstaking and careful job of proofreading and correcting.
   从搜集到整理书籍，他们作了大量细致的校雠工作。

4. After these very long, painstaking operations, attempting to cure things they'd never been able to touch before, the patients died.
   医生经过长时间辛勤的手术，企图去治愈他们过去从未接触到的病症，但最后病人死了，他们死于严重感染。

5. Trade and environmental objectives should be able to reinforce each other, though getting there can be a painstaking process.
   贸易与环境保护应该是相辅相成的，虽然说达到这个目标要历经艰辛。

6. You know I'm very busy. Furthermore, learning Chinese isn't easy. It requires a systematic approach and painstaking practice.
   你知道我很忙，而且，学习汉语不易，是一个系统性的工作，要吃很多苦头去练习。

7. Seeking after happiness has been a most painstaking experience , but one that I would not trade for anything .
   追求幸福对我来说是十分艰苦的经历，但却是一种用什么我都不换的经历。

8. A few races remain so close they are bound to be the subject of painstaking recounts and protracted legal battles .
   这句是不是可以译作：有几次的竞选票数仍然很接近，他们注定要痛苦的等待重新计算的结果，并进行拖延的法律斗争。