gleaning

动词 glean:

1. gather, as of natural products
   同义词：reap, harvest, glean

1. I have spent the whole week gleaning through the library.
   我花了整整一星期时间，找遍图书馆收集资料。
2. Some children helped them glean in the fields.
   一些孩子帮他们在田里拾落穗。