1·Has been constantly updated in order to meet the different needs of mankind.
一直为了满足人类的不同需要而不断的在更新。
2·If this does not occur or valve has been constantly discharging remove bonnet.
如果上述现象没能发生，或者阀门持续排放，则拆卸阀盖。
3·Both at Petersburg and at Moscow their house had been constantly full of guests.
无论在彼得堡，抑或在莫斯科，他们的住宅中经常挤满了来宾。
4·The population of the Italian "water city" Venice has been constantly reduced for years.
意大利“水城”威尼斯人口多年持续减少。
5·The various diseases caused by decoration pollution have been constantly exposed in the news.
由于装修污染造成的各种疾病越来越多的出现在新闻中。
6·The advantages and importance of on-ground flight simulator has been constantly concerned about.
地面飞行模拟器的作用和重要性经常受到人们的重视。
7·As it has grown, it has been constantly tweaking the integration between product development and manufacturing.
在其增长的同时，HTC也在不断协调产品开发与制造，二者之间的统一。
8·The relationship between language and culture has been constantly a hot topic for linguistics home and abroad.
语言与文化的关系一直是国内外语言学家争论的焦点。
9·The syntactic structures where personal pronouns are modified have been constantly emerging since modern times.
近代以来，汉语里人称代词受修饰的语法格式大量涌现。
10·With the modem information technology developing rapidly, e-commerce has been constantly improved and perfected.
随着现代信息技术的飞速发展，电子商务在不断成熟和完善。