The array concat function takes an array of strings as an input and returns a concatenation of the strings into a single string output.
array concat函数获取一个字符串数组作为输入并在字符串输出中返回联接后的这些字符串。
2
This result cannot be represented in a single variable in c, so the multiply function returns the result in two different output parameters.
这个结果在c语言中无法使用单个变量进行表示，因此这个乘法函数会以两个不同输出参数的形式返回结果。
3
Instead of collecting all the output and processing it on a single thread, the final function called is passed to each thread via the ForAll extension method.