Tuesday,2024.1.9
New Words:
extinct [iks'tiŋkt] adj. 灭绝的;绝种的;绝迹的;消亡了的
Sample Sentences:
All hopes were extinct.
Dinosaurs have been extinct for millions of years.
What a pity that this kind of rare animal has become extinct. 
Have you ever thought that one day mankind would be extinct?