自上世纪30年代初以来，瑞士银行一直为他们的银行保密系统和账户编号制度而自豪。

Since the early 1930s, Swiss banks had prided themselves on their system of banking secrecy and numbered accounts.

youdao

银行同意遵守的规定使得开立编号账户受到比以前更严格的审查。

The rules which the banks had agreed to observe made the opening of numbered accounts subject to much closer scrutiny than before.

youdao

人们普遍认为，瑞士对富有的外国人来说是不可抗拒的，主要是因为它的账户编号，以及银行家不愿向储户提出尴尬的问题。

There was a widely-held belief that Switzerland was irresistible to wealthy foreigners, mainly because of its numbered accounts and bankers' reluctance to ask awkward questions of depositors.

youdao