- average length of life平均寿命;
- angle of reflectionn.反射角;
- and what not此外还有;之类;
- a matter of concern一个令人关切的问题
- brick and mortaradj.实际存在的;实体的;具体的;（公司等）有厂房和店铺的;
- bread and buttern.涂黄油的面包，生计;
- boom and bust经济繁荣与萧条的交替循环;
- beam and girder slab交梁平板;
- bank of communication[财]交通银行;
- bachelor of sciencen.理学士;
- cut and pastev.剪贴;切贴功能;
- circle of friends[电影]朋友圈;
- chapter and versen.引经据典，规程;确切根据;
- certificate of depositn.存款单;存单;
- economical and convenient for use经济方便使用
- feet of clay（受景仰受尊敬的人）品格上的缺陷（或弱点）;泥足（比喻站不住脚的事物）;
- go above and beyond the call of duty超越职责的召唤
- kiss of lifen.人工呼吸;
- line of sight视线，瞄准线;
- more and more越来越;越来越 ...;日益;
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