We used to think the solution to pollution was dilution, but that has proved to be no longer the case.
Nous pensions que la solution à la pollution était la dilution, mais cela a prouvé que ce n'était plus le cas.
We used to think the solution to pollution was dilution, but that has proved to be no longer the case.
Nous pensions que la solution à la pollution était la dilution, mais cela a prouvé que ce n'était plus le cas.