Pay for the benefits of labor and exchange is equivalent to - most drastic type of V4 version of the development work has come to let of satisfaction, customer delight for the good of the.

付出的劳动与换来的好处是等价的——破釜沉舟式的V4版本开发工作，终于迎来了让作者满意、让客户欣喜的上佳之作。