Procaviidae
蹄兔科
🗣️ 情景例句
When you start discussing politics, I'm completely out of my depth.
你们一谈论政治，我就一窍不通了。
Why are you talking so far?
你为什么说得这样快？
suggested an idea on which he had been working for many years to the British Government and industrial circles.
他向英国政府和工业界提出了他研究多年的一项计划。