传统家庭单位在社会结构中扮演着重要角色。

The traditional family ___unit plays a vital role in social structure.

努斯鲍姆博士是伦敦国王学院公民自由研究单位的主任。

Dr Nussbaum is the director of the Civil Liberties Research ___Unit at King's College, London.

两名士兵在获准重返单位前接受了两周的训练。

Both soldiers spent two weeks in training before being allowed to rejoin their ___unit.