a)pass off well/badly etcWAY/MANNER if an event passes off well, badly etc, it happens in that way 进行顺利/不顺利等
The visit passed off without any serious incidents.
这次访问没有发生太大的意外。
b)pass somebody/something off as something to make people think that someone or something is another thing 把某人/某物冒充为… 假称某人/某物是…
They bought up pieces of old furniture and passed them off as valuable antiques.
他们收购旧家具,然后假称它们是值钱的古董。
He passed himself off as a doctor.
他谎称自己是医生。
Examples from the Corpus
pass somebody/something off as something• This is the kind of thing a man who passes himself off as a fashionconsultant can be expected to know.• As a childlesswife can only suffer, there would be no point in passing an intersexual off as a woman.• Though the doubt is really an expression of not-being-committed, it passes itself off as an excuse for not-committing.• Equally, it is an offence for a private company to pass itself off as being a public company and viceversa.• I wonder how many years unqualified people could pass themselves off as consultant thoracic surgeons, for example, without detection.• They tried to pass the crystals off asdiamonds.• Anyone trying to pass these absurdities off asfiction would have been laughed out of Hollywood.• We could go in and pass ourselves off asinvitedguests by being brazen.• But what more could you expect from the bunch of monkeys trying to pass themselves off as judges?• The agentsmanaged to pass themselves off aswealthybusinessmen.