rounding method的用法和样例：
例句
- One implication of this rounding method is that some seemingly equivalent transformations don't actually have identical semantics.
该舍入方法的一个含义是某些似乎等效的转换实际上并不具有完全相同的语义。 - The third argument specifies the return type of the function and is substituted exactly into the method signature.
第三个参数指定函数的返回类型并被准确代入方法签名中。
