rock tar
英
美
- n. 原油
双语例句
- Naturally occurring rock oil is referred to as crude oil or petroleum.
天然形成之石油，我们称作原油或石油。 - As long as the price of crude oil continues to increase, the technology and money for tar sands mining will probably be found.
只要原油的价格继续上涨，开采油砂的技术和投资是会有的。
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