付出的心血没有白费 (fùchū de xīnxuè méiyǒu báifèi - the effort put in was not wasted)
Grammar & Usage
How it works
This expression uses the structure "付出的 (something) 没有白费". "付出" means to pay, expend, or give. "的" functions as a possessive/attributive particle, making "付出的" describe "心血" (heart's blood, meaning painstaking effort). "没有白费" means 'was not wasted' or 'was not in vain'. The phrase conveys that the hard work invested yielded positive results and was worthwhile.
Sample sentences
经过多年的研究，他付出的心血没有白费，终于取得了突破性进展。
After years of research, his painstaking efforts were not wasted, finally achieving groundbreaking progress.
虽然过程很艰难，但看到孩子们快乐的笑容，我觉得所有的付出的心血没有白费。
Although the process was difficult, seeing the children's happy smiles, I felt that all the effort put in was not in vain.
我们相信，只要坚持下去，我们付出的心血就没有白费的一天。
We believe that as long as we persevere, the effort we put in will not be wasted one day.
Quick facts
Mnemonic
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Example
经过多年的研究，他付出的心血没有白费，终于取得了突破性进展。
After years of research, his painstaking efforts were not wasted, finally achieving groundbreaking progress.
虽然过程很艰难，但看到孩子们快乐的笑容，我觉得所有的付出的心血没有白费。
Although the process was difficult, seeing the children's happy smiles, I felt that all the effort put in was not in vain.
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