adj.无铅的，不含铅的

The car runs on unleaded petrol.
这辆车使用无铅汽油。
I need to fill up with unleaded, please.
我要加无铅汽油，请。
Unleaded gasoline is better for the environment.
无铅汽油对环境更好。
The price of unleaded has gone up again.
无铅汽油的价格又上涨了。
Most modern cars require unleaded fuel.
大多数现代汽车需要无铅燃料。
Are you sure you want unleaded? It's more expensive.
你确定要无铅的吗？它更贵一些。
The government promotes the use of unleaded petrol to reduce pollution.
政府鼓励使用无铅汽油以减少污染。
I prefer to use unleaded gas in my vehicle for its cleaner emissions.
我喜欢在我的车里使用无铅汽油，因为它的排放更清洁。
The unleaded option is recommended for high-performance engines.
对于高性能发动机，推荐使用无铅选项。
Many countries have phased out leaded petrol in favor of unleaded.
许多国家已逐步淘汰含铅汽油，转而使用无铅汽油。