Holothurioidea
[医]海参纲
🗣️ 情景例句
She has the ability to keep calm in an emergency.
她有处变不惊的本事。
Would you let me know your fax number?
可以告诉我您的传真机号码吗？
It is impossible to make more than the wildest guess at how many they kill, but they are hungry creatures, not content with only three meals a day.
它们一年中消灭了多少昆虫，我们简直无法猜测，它们是吃不饱的动物，不满意一日三餐。