At that time, the majority of important positions in aristocratic society were taken by the Fujiwara clan, hence members of other clans had to wait quietly for their slight chance of getting promoted.
というのも、当時の貴族社会は藤原氏が主要な地位を独占しており、他の氏族の者はごくわずかな出世の機会を心静かに待つしかなく、