Programmers should always keep the end user in mind when designing a new piece of software.在设计新软件时,程序员应该始终考虑到最终用户。It's difficult to know ahead of time whether an audience will like a new piece of music.事先很难知道听众是否会喜欢一首新曲子。Practically every new piece of documentary evidence provides additional confirmation that the charges are true.实际上,每一份新的证明文件都进一步证实这些指控属实。