这是全国通行的办法。

This is the current practice throughout the country.

《新英汉大辞典》

一旦外面足够安全，邮递员就开始在仍可通行的路线上分发堆积的邮件。

As soon as it's safe enough to be outside, couriers start distributing accumulated mail on the still accessible routes.

youdao

只要外出足够安全，快递员就开始在仍然可以通行的路线上分发之前累积的邮件。

As soon as it's safe enough to be outside, couriers start distributing accumulated mail on the still-accessible routes.

youdao