例句：
The police caught the man who tried to abduct the boy for ransom.
警察抓住了那个企图拐走这男孩以便勒索赎金的家伙。
He had attempted to abduct the three boys.
他曾企图诱拐那三个男孩。
In Rome, you can drink from a street fountain fed by an ancient aqueduct.
在罗马，你能直接喝街道喷泉里的水，是从古渠道流过来的。
The raw material for the tyre is a byproduct of oil refining.
这种轮胎的原料是汽油提炼的副产品。