It is well known that the wireless waves travel at very speed

It is well-known it is well known that it is well-known that,还是it is well known that到底是哪一个?well known和 well-known有什么区别？ as it is well known 和 as is well known的句子结构区别? it's well known It is well-known that a dove symbolizes peace.无 用It is well-known that…造句 英语翻译It is well known that ( ) 括号内填什么? It is also well known as an international city. it is well known to us that是什么意思 It is well-known to sb 还是It is well-known to for sb?为某人所熟知的,应该用哪个戒指? It is well-known that the Nansha_____（岛）is our country's in history.RT it's well known that zhou jiulun is a singger who is popular with the young Suzhou is well- known for its silk(同意句) Suzhou is _____ _____ it's sillk it is well known that lung cancer is caused at least in part by smoking too Rizhao __________ a harbor city and it __________ its beauty and some famous people.A. is known as; is better known for B. is known for; is better known as C. is known as; is well known for D. is known for; is good known asAorC ? 问下AS is well known和IT is well known有什么区别,选择总出.但好像意思一样啊 英语翻译It is well-known that the English go out with an umbrella or a raincoat