early 15c. "petroleum, rock oil" (mid-14c. in Anglo-French), from Medieval Latin petroleum, from Latin petra "rock" (see petrous) + oleum "oil" (see oil (n.)).
实用例句
1. Petroleum engineers plan and manage the extraction of oil.
石油工程师规划并管理石油的提炼。来自柯林斯例句
2. The purpose of oil refinery is to refine crude petroleum.
炼油厂的主要工作是提炼原油.来自《简明英汉词典》
3. The Government of Iran advanced the price of petroleum last week.
上星期伊朗政府提高了石油价格.来自《现代英汉综合大词典》
4. They refined crude oil into various petroleum products.
