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1·Passing sentence, the judge said it all had the appearance of a con trick.

宣判时，法官说这个事情具有一个骗局所有的全部外在形式。《柯林斯英汉双解大词典》

2·But instead of being a zombie or a vampire, why not trick or treat dressed-up as Wall Street's most infamous con man.

但是，除了女巫或吸血鬼之外，为什么不尝试一下装扮华尔街最臭名昭著的骗子呢？

3·The trick is to find reputable, high-quality programs and to avoid con artists and dead-end programs, advises Unger.

重要的是找到有知名度的、高质量的项目，要避免陷入骗局和没有希望的项目。