Holothuroidea
海参纲
🗣️ 情景例句
It's not like I have nobody.
我身边并非没有亲近的人。
Car manufacturers are having a bad time.
汽车制造商的日子不好过。
The search proved difficult, for the puma was often observed at one place in the morning and at another place twenty miles away in the evening.
事实上搜寻工作很困难，因为常常是早晨在甲地发现那只美洲狮，晚上却在20英里外的乙地发现它的踪迹。