问题描述：
英语首字母填空问题
Dozens of old craftsmen were recruited from two remote factories o_____ Shanghai to work on it.
The bridge is expected to have a s____ lifespan of at least 50 years.
Dozens of old craftsmen were recruited from two remote factories o_____ Shanghai to work on it.
The bridge is expected to have a s____ lifespan of at least 50 years.
问题解答：
我来补答展开全文阅读