Pentamerida
[古生]五房贝属
🗣️ 情景例句
What's going on?
你在忙些什么？
And to stay ahead of the competition is to openly and freely exchange our opinions.
处于竞争领先地位的方法就是公开、自由交换我们的想法
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。