Researchers at Cambridge University have found that nearly half of the social networking sites don't immediately delete pictures when a user requests they be removed.
出自-2010年12月听力原文
He says that more openness in science could help to discourage what some perceive as a common practice of shutting out early-career scientists requests for data.
2017年12月六级真题(第二套)阅读 Section B
柯林斯高阶英汉双解学习词典释义
VERB
请求;要求
If you request something, you ask for it politely or formally.