sigh,sign,sight,signal和signature的区别最好各举一个例子

sigh,sight,sign中的g发什么 sigh,sign,sight,signal和signature的区别最好各举一个例子 10.The Great Wall is one of the(?) of the world.(A) sights (B) sight (C) sigh (D) sign sign sign sign sign sign sign与sigh的意思区别 sign up ,sign Check your mail status: Sign In Free mail: Sign Up这里的sigh in 和sign up是什么意思?有什么区别.再翻译一下句子.谢谢. B__ is a sigh of a man.B__ is a sign of a man. sign in sign up sign音标 sign是什么意思? sign是什么意思 sign是什么意思?