curdle

1. If milk or eggs curdle or if you curdle them, they separate into different bits. 凝結

The sauce should not boil or the egg yolk will curdle. 這調味汁不能煮沸，不然蛋黃會凝結。

The herb has been used for centuries to curdle milk. 這種香草被用來凝乳已有幾個世紀。