"turn around" means "the process of completing or the time needed to complete a task.
在这里就是指: 从服务器 IPT 到服务器 Cert, 再到服务器 Prod 通常需要多少时间?
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Dating your friend's Dad, what do you think? Your idea stay away. (keep one's distance, stand back.) 主持人的意思是你这主意离我远点!