vt.

1. 使煩惱；跟……糾纏不休；不斷地找……的岔子[（+for/into）][OZ]
   The cough has been nagging me for some time.

   咳嗽已使我煩惱了一陣子了。

2. （問題等）困擾[（+into）][（+at）]

vi.

1. 不斷嘮叨；責罵不休
   Can you stop nagging all the time?

   不要老是嘮叨行不行？

2. （痛楚等）不斷引起苦惱

n.

1. 【口】好嘮叨的人（尤指女性）[C]
   Nobody likes to work with a nag.

   誰也不願與好嘮叨的人一起共事。

n.[C]

1. 老馬；駑馬
   The nag has been with John for so many years that it is hard for him to part from it.

   這匹老馬跟隨約翰這麼多年了，約翰很難與它分離。

2. 【口】馬
   Is that your nag?

   那是你的馬嗎？

3. 矮小馬
   I have never seen a nag like this one.

   我從來沒見過這樣的矮小馬。

v.

1. constantly ask (someone) to do something which they are reluctant to do.
2. [often as adj. nagging] be persistently painful or worrying to.

n.

1. a person who nags.
2. a persistent feeling of anxiety:
   he felt a little nag of doubt.

n.