Spontaneous cataract
[医] 自发性内障
🧩 词语组成解析
🗣️ 情景例句
The bad news is, you won't be able to adopt the dog.
坏消息是你不能收养那只狗了。
It is a small flock that has not a black sheep.
家家难免有败类。
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧气在空气中的含量达到25%，它就要燃烧。