be divided intobi:dɪˈvaɪdɪdˈɪntuː短语¹⁸⁴⁰⁵ 基本例句 被分成 The sag can be divided into5 secondary tectonic belts, the main sedimentary formation is Tertiary and the main source rock is Pinghu coal measures of Eocene. 该凹陷分为5个二级构造带，沉积地层以第三系为主，主要烃源岩为始新统平湖组煤系。 http://dj.iciba.com