护士用沸水给婴儿奶瓶消毒。

The nurse ___sterilised the baby bottles with boiling water.

为了防止流浪猫过度繁殖，我们建议主人给宠物做绝育手术。

To prevent overpopulation of stray cats, we recommend owners get their pets ___sterilised.

过度监管会扼杀企业的创新活力。

Excessive regulations have ___sterilized the innovative spirit of businesses.