Watchman

N-COUNT A watchman is a person whose job is to guard a building or area. 看守人 ^[1] 

night watchman 守夜人 ^[1] 

You're a watchman, ain't you!

你是個守夜人，是嗎？

Remember the little watchman when you long to do a wicked deed again.

當你想再做一件壞事的時候，要記得那個小守望人。

They had a language too; but surely nobody can expect that the soul of the watchman should understand it.

他們也有自己的語言，但誰也不能指望守望者的靈魂能理解它。 ^[1]