【TOEFL核心词汇】No.69 运河
Hints：只听写例句。前面的单词不用听写。http://t1.g.hjfile.cn/listen/201212/201212130534354669331.mp3They also helped build the vast network of canals and railroads that crisscrossed the continent and linked important trade centers essential to industrial growth.
页:
[1]