Take the dead-letter drop, where an item can be left inconspicuously and securely for someone else to pick up.

把秘密情报投放点选择在东西留在那里而不易被发现却可以让别人安全的取走的地方。

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Drop the letter into the mailbox marked "Out of Town".

将信投到那个标有“外埠”的邮箱里。

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One person communicates with another, only it happens faster than a postman takes to drop a letter through a door.

这无非是一个人与另一个人传递信息，只不过比邮差把信扔到门里快一些。

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Nobel Peace Prize laureates Archbishop Desmond Tutu and East Timor president Jose Ramos-Horta have signed an open letter calling on Iran to unconditionally drop the charges against the Baha'i educators.

CNN: STORY HIGHLIGHTS

"These are the lowest head coach diversity numbers the league has seen since 2003, when the Rooney Rule was just implemented, " wrote Harry Carson, the Fritz Pollard Alliance's executive director, in a letter to NFL officials regarding the drop from six to four black head coaches in the league after this past regular season.

CNN: In dark day for NFL diversity, Newsome shines

Only after Mr. Smith received a third insistent letter from Mr. Ziegler did he drop his business card into the self-addressed stamped envelope.

WSJ: Smitten by Smiths: Bob Ziegler