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1.sterilize vt. 消毒，杀菌；使成不毛；使绝育；使不起作用
Sulphur is also used to sterilize equipment.
硫磺也用来给设备消毒。
2.periodic chart 周期表
Since the elements were arranged in a periodic chart, it has been widely used all over the world.
自从元素排成周期表以来， 周期表在世界各地得到广泛应用。
3.coronavirus n. 冠状病毒；日冕形病毒
Other viruses including the coronavirus, respiratory syncytial virus and enterovirus have also been identified as causing cold symptoms.
包括冠状病毒、呼吸道合胞病毒和肠道病毒在内的其他病毒也被确认会引发感冒症状。
4.pneumonia n. 肺炎
Penicillin cured him of pneumonia.
青霉素治好了他的肺炎。
5.pathogen n. 病原体；病菌
It's not yet clear if the pathogen might cause cancerous changes, the researchers told Genome Research journal.
他们在《基因组研究》杂志上表示，该病菌是否会导致癌变，目前尚不清楚。
6.membrane n. 膜；薄膜；羊皮纸
A vibrating membrane in the ear helps to convey sounds to the brain.
耳膜的振动帮助声音传送到大脑。
