心血没有白费 (xīnxuè méiyǒu báifèi - painstaking effort was not wasted)
Grammar & Usage
How it works
This idiom is composed of '心血' (xīnxuè - heart's blood, meaning painstaking effort), '没有' (méiyǒu - did not/have not), and '白费' (báifèi - to waste in vain). It describes a situation where significant effort or dedication ultimately yields a positive outcome and is not wasted. The '没有' negates the '白费', implying that the effort was indeed fruitful.
Sample sentences
看到项目成功，大家的心血没有白费。
Seeing the project succeed, everyone's painstaking effort was not wasted.
虽然过程很艰难，但最终的结果证明了我们的心血没有白费。
Although the process was very difficult, the final outcome proved that our hard work was not in vain.
经过多年的研究，这份报告的发表让教授觉得自己的心血没有白费。
After years of research, the publication of this report made the professor feel that his painstaking effort was not wasted.
Quick facts
Mnemonic
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Example
看到项目成功，大家的心血没有白费。
Seeing the project succeed, everyone's painstaking effort was not wasted.
虽然过程很艰难，但最终的结果证明了我们的心血没有白费。
Although the process was very difficult, the final outcome proved that our hard work was not in vain.
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