vaccine

The COVID-19 vaccine was developed in record time to combat the global pandemic.

(Chinese) 新冠疫苗以创纪录的时间研发出来，用以对抗全球大流行。

Polio was nearly eradicated globally thanks to widespread vaccine distribution.

(Chinese) 由于疫苗的广泛分发，脊髓灰质炎在全球范围内几乎被根除。