He started work at the sharp end of the business, as a salesman.

他从这一行最为棘手的工作做起，当了推销员。

《牛津词典》

Sharp end cuts through boxes or bags.

尖头，可以穿透箱子或袋子。

youdao

Those four consecutive defeats have cast an unforgiving light on the sharp end of benitez's squad.

连败四场的战绩使得贝尼特斯的队伍最终暴露在无可原谅的目光之中。

youdao

However,Australian health authorities expect a sharp rise in the number of swine flu infections in August, toward the end of winter in the southern hemisphere.

VOA: standard.2009.07.24

It is never comfortable to be at the sharp end of the political process.

ECONOMIST: Cabins in the wilderness: The market growls | The

That doesn't mean it can't feel like the exact opposite for some of those at the sharp end.

BBC: Bitter-sweet sympathy

Mr Wright said he wanted resources concentrated at the "sharp end" rather than "costly and often unnecessary red tape".

BBC: South Yorkshire PCC candidate Gillian Radcliffe pulls out