Railroads typically charge such"captive"shippers 20 to 30 percent more than they do when another railroad is comepting for the business.这句话比较级结构看不懂,求分析一下句子结构和意思
Carbon and oxygen taken together,one atom each,gives you the deadly gas carbon monoxide. taken together是过去分词作定语修饰carbon and oxygen吗?另外,one atom each是什么用法
And as for the bananas, researchers also found a high percentage of fossils from banana plants in sediment samples dating from about 7,000 years ago—proof that bananas were deliberately planted.我想问下Proof是前面整句话的同位词吗? 成分上很孤立啊