This process enables you to determine both who sent the message and whether it changed en route.

这一过程能使您确定消息的发送者以及消息在传递途中是否被修改过。

youdao

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

Those private citizens who sent packages to our troops occupying Germany after World War II and marked them GIFT to escape duty payments did not bother to find out that "Gift" means poison in German.

那些在第二次世界大战后给我们占德军队寄包裹并在上面注明“礼物”以逃避税款的普通公民，根本没有费心去发现“礼物”在德语中是“毒药”的意思。

youdao

Missus Obama praised the determination of the students, who sent thousands of letters to the White House asking her to come speak at their graduation.

VOA: special.2009.06.05

Moses says: May I say who sent me?

摩西说：我要说是谁打发我来的吗？

耶鲁公开课 - 旧约导论课程节选

The Israelites will want to know who has sent me, Ehheh asher ehyeh And God replies with a sentence, "Ehyeh asher ehyeh."

以色列人还想知道是谁打发我来的，上帝用这句话作答“

耶鲁公开课 - 旧约导论课程节选

But clues to who sent it or what they did on their trip are sparse.

BBC: The front and back of the post card

The men and women who sent us here don't expect Washington to solve all their problems.

WHITEHOUSE: Presidential Press Conference

We will talk to the student who sent it in just a few minutes.

NPR: What The U.S. Can Learn From Upbeat Brazil