his dual role as composer and conductor他兼任作曲家和指挥的双重角色He has dual role as composer and conductor.他兼作曲家及指挥的双重身分.The airplane had dual controls.这架飞机有两套操纵装置....
In social politics, too, the city's contribution to 20th century thought and culture was no less portentous...同样从社会政治学上看，城市对20世纪思想、文化的贡献也意义重大。Before me stretched the portentous, menacing road of a new decade.在我面前展现出...