乍一听，你会以为这是地下工作者的联络信号。全不尽然，在校园里可是有各种各样的组织。这里的“组织”是指那些学生小团体。他们可能有相同的兴趣爱好，性格品行也很合得来，在一起有共同语言，他们结成了盟友，关系自然要比其他同学铁得多。就举个通俗点的例子吧，三国演义中 At first glance, you might think this is the signal of the underground workers. All of a sudden, there are various organizations on campus. The ”organization" here refers to those small groups of students. They may have the same interests and hobbies. Their character and behavior are also very much in harmony. They all have common language together. They form alliances and naturally have a much weaker relationship than other students. Take the example of popular point, Romance of the Three Kingdoms