Antiseptic
Antiseptic 既可以指化学上的杀菌，也可以形容环境极其干净、单调甚至缺乏生机。
- Garlic has powerful natural antiseptic properties. (大蒜具有强大的天然防腐特性。)
- Clean the wound with an antiseptic wipe. (用消毒湿巾清洗伤口。)
- The hospital room was cold and antiseptic. (医院的病房冰冷且缺乏生气。)
- 前缀：
anti-(反对，对抗) - 词根：
-sept-(腐烂，如 sepsis 败血症) - 含义：对抗腐烂。
记：anti- (反) + septic (腐败/细菌)。对抗细菌的东西就是消毒剂。
The surgeon made sure the environment was completely antiseptic before starting the operation. (外科医生在开始手术前确保环境完全无菌。)