main fuel的用法和样例:
例句
- In the next century, nuclear energy could overtake oil as the main fuel.
下个世纪,核能可能超过石油成为主要燃料。
- The day will finally come when we no longer rely on coal and oil as our main sources of fuel.
我们不再依靠煤和石油作为主要燃料来源的日子终究会到来。
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