已经成立英语

成立 [chéng lì] foundestablishset up

成立 [词典] establish; found; be tenable; hold water; come into existence; [例句]大连大学成立于1987年。Dalian University was set up in 1987.

可以。Our company has been in business for 30 years.Our company has a history of 30 years. 我们公司建立时间不长 We are a newly established company. 我们公司成立很久了 Our company enjoyed a long history.

establish /ɪˈstæblɪʃ/ to start or create an organization, a system, etc. that is meant to last for a long time 建立；创立；设立 同义词： set up 例句：The committee was established in 1912. 这个委员会创立于 1912 年。

1 It has been ten years since his company has been established.这样表达最通畅2 When was this park built? 这样表达就可以了，如果一定要用how long 或 how many years可以说 How long has it been since this park has been built? 但反而啰嗦3 我的理解也是这样，即：不可以在how long 开始的疑问句中用非持续性的谓语动词。

1 Our company has been in (the) business for thirty years.其实换种表达也可以~你说established是非延那么现在是2011,30年前是1981，可以说Our company has been established since 1981.Our company was established in 1981.2 我们公司建立时间不长楼上的表达很不错We are a newly established company.我们公司成立很久了我觉得动词可以用experience，有“经历风雨”的那种含义在。Our company has experienced a long history.这个句子甚至可以用来表达上面的：“成立30年”，把experience用名词Our company has a 30-year experience.Our company has 30 years experience.