可以使用此谓词定义简单的自定义查询。
聚三军之众,投之于险,此谓将军之事也。
To muster his host and bring it into danger:--this may be termed the business of the general.
要理解这一点,查看在此谓词的查询注释上的MAXFREQ。
To understand this, look at MAXFREQ in the query annotation for this predicate.
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