quiet corona

例句：

1. 1. The scientists are trying to understand the silent coronavirus better.
   科学家们正在努力更好地理解这种安静的冠状病毒。
2. 2. The virus has been causing a lot of concern among people, especially those who have been in contact withit.
   这种病毒已经引起了人们的广泛关注，尤其是那些与它接触过的人。
3. 3. It's important to keep our distance and practice good hygiene to prevent the spread of the silentcoronavirus.
   保持距离并保持良好的卫生习惯是预防这种安静的冠状病毒传播的重要措施。