astration是什么意思

n.[天]新星形成

1、The astration of the cat was necessary to control its aggressive behavior.
去势这只猫是为了控制它的攻击性行为。

2、The practice of astration in livestock is common to control population growth.
在家畜中进行阉割是为了控制种群增长的常见做法。

去势；阉割