不追溯 meaning in Chinese

non-retroactivity

And for those who are fortunate enough to have been admitted before the introduction of the size criterion , they can alternatively lobby and hope for a favourable outcome of beijings consideration of the " grandfathering " proposal that we have already put on the table on their behalf
至于在内地实施这项规定前就已经获准进入内地银行业市场的银行，它们或许可以选择进行游说，并期望金管局代表它们向北京提出的不追溯建议会得到接纳。