day job

英 [ˈdeɪ dʒɒb]

美 [ˈdeɪ dʒɑːb]

n. 日常的有薪工作; (白天的)正职

习惯用语

don't give up the day job

别放弃白天的正职（别放弃老本行去尝试没有把握的新事物）
used to tell sb that they should continue doing what they are used to, rather than trying sth new which they are likely to fail at
So you want to be a writer? Well my advice is, don't give up the day job.
这么说你想成为一个作家了？得了，我劝你不要放弃老本行。

牛津词典

noun

日常的有薪工作；（白天的）正职
the paid work that sb normally does

柯林斯词典

PHRASE 不要放弃正职
If someone tells younot to give up the day job, they are saying that they think you should continue doing what you are good at, rather than trying something new which they think you will fail at.
1. It's a kind way of telling aspiring novelists, 'Don't give up the day job'.
  这是劝诫立志成为小说家者“不要丢了正业”的一种温和方式。

双语例句

Getting it down in words was very hard, even though I considered the act of explanation my day job.
即便我想用文字解释我日常的工作都很难。
It's safer to stay at your day job.
停留在你现在的工作上比较安全。
Career is not just your day job anymore& career is how you spend all your time.
职业生涯不只是你的日常工作了职业生涯是如何，你都用你的时间。
Don't give up your day job.
不要放弃你的白天正式工作。
Besides, if you are an investment banker, you already know all about price manipulation, brand hype and market panic from your day job.
不过，如果你是一位投资银行家，在日常工作中就应该已经对价格操纵、品牌造势和市场恐慌了如指掌。
Be authorized to arrange the employee's day to day job task.
经授权安排员工日常的工作任务。
The disadvantages are also clear: if you get caught by your boss misusing resources or getting distracted from the day job, there will be trouble; and a business run in your spare time will never receive the focus and devotion it needs to be truly successful.
劣势也是明显的：如果老板发现你滥用资源或者不专注于平时的工作，你就会有麻烦；你利用业余时间经营的生意永远得不到企业真正成功所需的关注和投入。
Partly it is because my dream is an addition to what I do already: I have not given up the day job.
部分原因在于，我的梦想是我所做事情的附加品：我没有放弃我的日常工作。
It is the main area of responsibility in your day job.
这也是在你日常工作中最主要的部分。
When he was seven months old, I returned to my day job, working part-time.
他七个月大的时候，我找了一份兼职，又开始正常的白班工作。