How do you deal with persistent salesmen who won't take no for an answer?

你怎么对付那些不轻言放弃、一直纠缠下去的推销员？

《牛津词典》

Confidence increases with persistent experiment.

自信随着坚持不懈的尝试而增长。

youdao

She is presently in a stable condition with persistent symptoms.

她目前病情稳定，伴有持续症状。

youdao

As the New York Times put it, he "struggled for much of his life with his weight,with alcohol and with persistent tales of womanizing."

VOA: special.2009.08.29

This might be a persistent vegetative state with no possibility of turning it on, even in principle.

这可能是个持续性植物状态,即便原则上，都没有可能重启开关。

耶鲁公开课 - 死亡课程节选

That flooding and persistent power cuts sparked riots in the Pikine neighborhood where people barricaded roads with burned tires and smashed the windows of a police vehicle.

VOA: standard.2009.09.06

If taken with persistent weakness in consumer confidence, still below the level historically associated with sustained increases in personal consumption.

FORBES: GDP Still Below Par, Leans On Inventory

What brought Argentina down was the combination of its fixed exchange rate, which made its currency uncompetitive, with persistent fiscal deficits.

ECONOMIST: Latin America

Patients with persistent or permanent atrial fibrillation are also indicated for single chamber ventricular pacers unless efforts are being made to restore sinus rhythm.

FORBES: Overview of the New HRS/ACCF Pacemaker Guidelines