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.
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