Ctenocephalus
[医] 栉头蚤属
🗣️ 情景例句
Practice tenses as much as possible.
操练各种时态。
That's terrible!
真是太惨了！
Imagine the effect on a reasonably advanced technological society,
那么可以设想，这将对这个社会产生何等的影响。但科技相当发达的社会，