In a natural, unrefined, or untreated state

• Not processed or purified

处于天然、未经处理的状态

• 未加工或未精炼的

Roughly made or basic; lacking finish or sophistication

• Primitive or makeshift

粗糙或简陋的

• 缺乏加工、细节或专业水平的

Approximate or not exact; lacking detail or precision

• Preliminary or early-stage

初步或不精确的

• 用于粗略估计的

A substance in its natural state, especially petroleum

• Crude oil

未经提炼的石油

• 处于天然状态的物质