gunrunner的音標為：[?ɡ?n?r??k?(r)]，基本翻譯為“軍火走私者；火器販運者”，速記技巧為：gun-run-er，即“槍-運行-者”。

"Gunrunner"這個詞的詞源可以追溯到英語中的"gunner"這個詞，它最初是指那些專門從事火器制造和銷售的人。這個詞源于中世紀英語中的"gunne"這個詞，意為"火器"。

"Gunrunner"的變化形式包括復數形式的"gunrunners"和過去式和過去分詞形式的"gunrunned"或"gunrunning"。

相關單詞方面，"Gunrunner"可以與"gun"這個詞構成許多相關單詞，如"gunfighter"、"gunslinger"、"gunmetal"、"gunpowder"、"gunshot"、"gunstore"、"gunwale"等。這些單詞都與火器有關，有的表示火器的使用，有的表示與火器相關的商店或材料。

在具體使用中，"Gunrunner"通常用來指代那些從事非法火器交易的人，他們通常在黑市上販賣火器，為犯罪活動提供武器。這個詞也常用于描述一個機構或組織，如邊境巡邏隊或海關，他們負責追蹤和打擊非法火器交易。

常用短語：

1. gunrunner"s paradise

2. run with the bulls

3. hit the road

4. hit the jackpot

5. hit the sack

6. hit the nail on the head

7. hit the spot

例句：

1. Gunrunner"s paradise is a place where people can buy and sell firearms without any restrictions.

2. We need to run with the bulls to keep up with the competition.

3. After a long day of work, I hit the road for a relaxing evening at home.

4. He hit the jackpot when he won the lottery.

5. I hit the sack after a long day of vacationing.

6. His speech hit the nail on the head and everyone agreed with him.

7. This drink hit the spot and gave me a much-needed energy boost.

英文小作文：

Gunrunning is a dangerous and illegal activity that can have serious consequences for those involved. However, it can also be a profitable business if done correctly and safely. I believe that gunrunning should be legalized and regulated to ensure that it is done safely and responsibly by those who have a genuine need for it. By legalizing gunrunning, we can ensure that it is done by those who are trained and qualified to handle firearms safely, and that it is done in a way that does not pose a threat to public safety or security. In addition, legalizing gunrunning would provide a stable market for those who wish to sell firearms, while ensuring that they are not sold to criminals or other unsuitable buyers. Ultimately, legalizing gunrunning would help to ensure that it is done safely and responsibly, while also providing a stable market for those who wish to engage in this type of activity.