I had a letter from a company trying to flog me insurance.

我收到了一家公司的信，向我推销保险。

《牛津词典》

It is useless to flog a dead horse.

鞭死马无益；勿旧调重弹。

youdao

We should be able to flog the car for a good price.

我们应该能把这辆汽车高价卖出。

youdao

Rather than trying to sell them more hardware, he developed new services to flog to them.

ECONOMIST: Reinventing Marconi

It will not be enough merely to flog products and services, no matter how individualised they are.

ECONOMIST: Idea

Now the country's research analysts have a platform from which to flog penny mining stocks and moose pastures.

FORBES: Split screen