Finally, as for salt, that grossest of groceries, to obtain this might be a fit occasion for a visit to the seashore, or, if I did without it altogether, I should probably drink the less water.

最后，说到盐，杂货中之最杂者，找盐本可以成为一个到海边去的合适机会，或者，如果完全不用它，那倒也许还可以少喝一点开水呢。

youdao

The water is said to be fit to drink. (After you.) You can fish for salmon, and there are dolphins downstream.

ECONOMIST: The Thames