In a typical case, if a court summons, say, 300 potential jurors, they're lucky if a hundred show up.
在一起非常典型案件当中, 如果法院传唤300名潜在陪审员, 如果有100人出现，他们就算很幸运了。
英语百科
Summons
（重定向自Court summons）
Legally, a summons (also known in England and Wales as a claim form and in the Australian state of New South Wales as a Court Attendance Notice (CAN)) is a legal document issued by a court (a judicial summons) or by an administrative agency of government (an administrative summons) for various purposes.