实验室用高压蒸汽锅对所有玻璃器皿进行消毒。

The lab ___sterilizes all glassware in an autoclave.

兽医建议给母猫做绝育手术以防止怀孕。

The vet recommended ___sterilizing the female cat to prevent pregnancy.

过多的规则往往会让课堂的活力消失殆尽。

Too many rules can ___sterilize the vitality of a classroom.