评论
打印
1. The Food and Drug Administration this week authorized an extra dose of the Pfizer or Moderna vaccines in people with weakened immune systems.
immune systems 免疫系统
Our immune systems are killing billions of germs right now.
我们的免疫系统正在杀死数以十亿计的细菌。
2. Extreme heat is invading parts of the US Northeast and mid-Atlantic region.
Extreme heat 高温天气；酷热天气
The extreme heat continued for weeks.
极端高温又持续了几个星期。
关注微信公众号【可可双语精读】，获取更多详细优质讲解内容。
