这还意味着研究多年前的档案、收集旧书和绝版书籍、组织过世人现存的档案、以及研究已经不再使用的武器和战术。
This meant years of archival research and tracking down old and out-of-print books and trying to gather materials for lively profiles of people long dead and of weapons and tactics no longer in use.
收集的旧书装满了阁楼。
为了收集讲课资料，我只好啃几十本经济学的旧书。
In order to gather material for my lectures, I had to plow through dozens of old books on economics.
为了收集讲课资料，我只好啃几十本经济学的旧书。
In order to gather material for my lectures I had to plough though dozens of old books on economics.
收集旧报纸、旧书、空罐头盒、废玩具，分类后送交回收中心； 在餐厅就餐时怎样节约粮食；
What's more, we will collect waste paper, old books, empty cans and old toys, which will be sorted before being sent to the recycling center.
收集旧报纸、旧书、空罐头盒、废玩具，分类后送交回收中心； 在餐厅就餐时怎样节约粮食；
What's more, we will collect waste paper, old books, empty cans and old toys, which will be sorted before being sent to the recycling center.
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