contribution; meritorious service [deed]; credit
have great achievements to one's credit
立下了功劳
make a merit of sth.
把某事当作自己的功劳
rest on one's laurels
躺在功劳簿上
Full credit must go to him.
全部功劳都得归他。
They claim all the credit for themselves and shift all the blame on others.
他们把一切功劳归于自己，把一切错误推给别人。