So, this is really a pretty dangerous situation that's always interesting to point out.

所以我总要指出,这是个很危险的事情。

麻省理工公开课 - 化学原理课程节选

They warn us of dangerous trends. They point out potent evils.

他们为我们警告对危险倾向，指出潜在的邪恶。

耶鲁公开课 - 1945年后的美国小说课程节选