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

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

For a body that works at society's sharp end, the hostel has many friends in high places, including banks.

ECONOMIST: Catholics in Britain