Sometimes travelers are stopped for having done something dubious to arouse the suspicion of authorities, but this student probably just happened to be part of the custom's random checks.
通常有可疑举动引起当局怀疑的游客会被拦下检查，但是这名学生可能只是碰巧被海关的随机检查抽中了。
Elections to positions in student organizations arouse much enthusiasm among the freshmen.
面向新生的学生组织各职位的竞选引发了很高的热情。
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