指在野党若组阁，有望成为内阁大臣的并对各自应负责的事务发表言论的反对党的领导者

指在野党若组阁，有望成为内阁大臣的并对各自应负责的事务发表言论的反对党的领导者的英文翻译

基本释义

• denoting leading members of the Opposition party who would probably be Cabinet ministers if their party became the Government,and who act as spokesmen on matters for which they would then be responsible