A DJ is the person who chooses and plays the recorded music, on the radio or in a place where people dance — a club, a wedding, a party.

on the radio在廣播上 or in a place where people dance或是在人們跳舞的地方 a club, a wedding, a party像夜店、婚禮、派對 A DJ is DJ就是 the person who chooses and plays the recorded music選歌、播放錄好音樂的人

The letters stand for disc jockey: disc is an old word for a record, and jockey is a playful name for the person who “rides” those records.

The letters stand for這幾個字母代表 disc jockey disc jockey（唱片騎師） disc is an old word for a record disc是唱片的舊說法 and jockey is a playful name for the person who 'rides' those records而jockey則是「騎」著那些唱片的人的俏皮說法

Today many DJs use laptops and mix two tracks together live, not only put vinyl on a turntable; hip-hop DJs may scratch. A radio DJ often talks between songs; a club DJ may barely speak and is there to keep the floor moving.

Today現在 many DJs use laptops很多DJ會用筆電 and mix two tracks together live現場混兩首歌 not only put vinyl on a turntable不只是把黑膠唱片放上轉盤 hip-hop DJs may scratch嘻哈DJ可能還會刷盤 A radio DJ often talks between songs電台DJ常常在歌曲之間講話 a club DJ may barely speak夜店DJ可能幾乎不說話 and is there to keep the floor moving只是在那裡讓舞池繼續動起來

It is also a verb: to DJ a party.

It is also a verb這個字也可以當動詞 to DJ a party to DJ a party（幫一場派對打碟）

In writing it is usually DJ, not dj. Informal everywhere; the job name everyone actually uses.

In writing書寫時 it is usually DJ, not dj通常寫成DJ，不是dj Informal everywhere到處都算非正式說法 the job name everyone actually uses是大家實際上會用的職業名稱