This rule refers especially to loose sentences of a particular type: those consisting of two clauses, the second introduced by a conjunction or relative.
这条法则尤其针对一种特殊的松散句：两个松散句，而且第二个松散句由连词或关系词连接。
2
The basic rule for this checksum is that each of the first nine digits is multiplied by its position (that is, the first digit times one, the second digit times two, and so on).
这个校验和的基本规则是前九位数的每一位乘上它的位置(即第一位数乘上1，第二位数乘上2，依次类推)。
3
A rule of correspondence between two sets such that there is a unique element in the second set assigned to each element in the first set.