it was all in vain meaning in Chinese
一切都枉费心机
Examples
- But when she decided to start her journey , she found herself gradually disappearing into the mud and sand . after numerous tries , she found it was all in vain and was very upset
当它决定越过沙漠时，却发现自己的河水渐渐消失在泥沙中，它试了一次又一次，总是徒劳无功，最后它灰心了。