to是写信人还是收信人
`To` 是指收信人，在写信时用来指明信件是写给谁的。它通常位于信件的顶部，紧接着称呼，如 `Dear Mr. Smith`，然后是 `To Mr. Smith`。`To` 后面接的是收件人的名字。
以下是一些使用 `To` 的例子：
`To whom it may concern:`
`To my dear friend:`
`To the editor of the newspaper:`
`To all members of the committee:`
`To the addressee:`
`To the person who requested information:`
`To the company\'s customer service:`
`To the person who sent the package:`
`To the person who is in charge of the project:`
`To the person who is responsible for the task:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the event:`
`To the person who is in charge of the department:`
`To the person who is in charge of the
其他小伙伴的相似问题：
To在信件中的具体用法有哪些？
如何区分To和For在信件中的使用？
收信人如何判断信件已收到？
