reliability       
noun [ U ] uk/rɪˌlaɪ.əˈbɪl.ə.ti/ us/rɪˌlaɪ.əˈbɪl.ə.t̬i/
C1 可靠性,可信度
the quality of being able to be trusted or believed because of working or behaving well
  Rolls-Royce cars are famous for their quality and reliability. 劳斯莱斯汽车以其质量和可靠性而闻名。 
 The entire office is dependent on her reliability and competence. 整个办公室的人都依赖于她的可靠和能力。 
 See: reliable
 - More examples
 - We aim to further improve the reliability of the electric power grid.
 - Some experts have questioned the reliability of the test.
 - There are issues with punctuality and reliability of bus services across the region.