The short answer is that you could, but you would not have learned about here-documents.

最简单的答案是，您可以这样做，但您必须先了解 here-documents。

youdao

Dear MP: to answer your first question first: no. You are under no obligation to give anyone a reference if you would rather not.

亲爱的万人迷：首先来回答你的第一个问题：不，只要你不愿意，你就没有义务去给任何人提供推荐信。

youdao

If you would like to lend a hand and you're hesitant because it is not clear that you have the means, do not give an answer immediately.

如果你想要对他人伸出援手，但是又因为不清楚自己是否有方法而犹豫不决的时候，不要马上答应别人。

youdao

If a tester did show up, you typically would not get a missed test even if you decided not to answer the door.

CNN: October 11, 2012 -- Updated 0154 GMT (0954 HKT)

Lieutenant General TED STROOP (Retired, U.S. Army): And the real question, which we will not be able to answer until you really see whether or not the Army makes its final recruiting marks and that would be perhaps four to five months after the recruiting year is closed, is whether or not you will find shortages in some of the combat units.

NPR: Army Recruiting Gap May Force Compromises

They may not answer as fast as inside sales reps would, but leave a message and they will call you back.

FORBES: What is Inside Sales? The Definition of Inside Sales