Even without knowing what was in the message, the knowledge of who sent them and to whom was enormously revealing and still could be.

即使不知道信息的具体内容是什么，知道信息是谁发的和信息发给谁也透露了客户隐私，并且这一漏洞还会继续存在。

youdao

You begin to infer a context for the text, for instance, by making decisions about what kind of speech event is involved: Who is making the utterance, to whom, when and where.

例如，你可以通过判定文本涉及何种类型的语言情景，来推测文章的语境：是谁在说话，对谁说话，何时何地。

youdao

Clearly define authority and responsibilities: who does what, what is delivered to whom, and what standards are to be met.

清楚地定义权力和职责：谁做什么，向谁交付什么，以及要符合什么标准。

youdao

"It seems that more clarity is likely to emerge about who did what to whom and whether or not war crimes, crimes against humanity and other very serious human rights abuses were committed by one or both sides,"

VOA: standard.2009.10.25

Who did what to whom is far less important in a celebrity divorce than who gives what to whom.

FORBES: The 10 Most Expensive Celebrity Divorces

The whips would never remember who had said what to whom about who could be where.

BBC: Nadine Dorries' fate rests on slip of paper

Rules about who fights whom and what weapons you can use (if any) vary from place to place, but the general gist remains the same, as does the expected goal of social catharsis and the collective venting of pent-up steam.

CNN: Takanakuy: The fighting festival of Peru