VERB
耐心学习，仔细收集（信息、知识等）
If you glean something such as information or knowledge, you learn or collect it slowly and patiently, and perhaps indirectly.
例句
At present we're gleaning information from all sources...
目前，我们正从各种渠道收集信息。
10,000 pages of evidence were gleaned from hundreds and hundreds of interviews.
从无数次的采访中收集到了长达一万页的证据。