结果表达式 meaning in English

result expression

For blocks and statements , the resulting expression is the last expression calculated by the block or statement
对于块和语句，结果表达式是由块或语句计算的最后一个表达式。
To assign a different collation to the output , apply the collate clause to the result expression of the cast or convert function
若要为输出分配不同的排序规则，请将collate子句应用于cast或convert函数的结果表达式。