• n. 唠叨；老马；竞赛马
• vt. 使烦恼；不断地唠叨
• vi. 不断地唠叨
• n. (Nag)人名；(乍)纳吉；(缅)纳；(印)纳格

来自Proto-Germanic*gnagan,咬，词源同gnaw,最终来自咬牙的声音。引申词义抱怨，牢骚。

nag (v.)

"annoy by scolding," 1828, originally a dialectal word meaning "to gnaw" (1825), probably ultimately from a Scandinavian source (compare Old Norse gnaga "to complain," literally "to bite, gnaw," dialectal Swedish and Norwegian nagga "to gnaw"), from Proto-Germanic *gnagan, related to Old English gnagan "to gnaw" (see gnaw). Related: Nagged; nagger; nagging.

nag (n.)

"old horse," c. 1400, nagge "small riding horse," of unknown origin, perhaps related to Dutch negge, neg (but these are more recent than the English word), perhaps related in either case to imitative neigh. Term of abuse is a transferred sense, first recorded 1590s.

1. Aunt Molly is a nag about regular meals.

莫莉姨妈是一日三餐都挑三拣四的人。

来自柯林斯例句

2. The suspicion that she was lying continued to nag at me.

我怀疑她撒谎,这使我烦闷不已.

来自《简明英汉词典》

3. There was a positive correlation between GPDA and N acetyl ? ? D glucosa minidase ( NAG ), urine minimal albumen ( UmA ).

尿GPDA与N乙酰βD氨基葡萄糖苷酶 ( NAG ) 和尿微量白蛋白 ( UmA ) 呈显著正相关.

来自互联网

4. The contents of the plasma ET, Bun, Cr and urine NAG, RBP, α1 - MG and ? ? - GTP were determined.

两组病人分别与麻醉前 、 手术后24h、48h、 72h检测 血浆内皮素 、 尿素氮、肌酐含量和尿NAG 、 RBP 、 α1-MG、γ-GTP含量.

来自互联网

5. Methods 24 hour urinary ablumin ( Alb ), transferrin ( TRF ), IgG, retinal - bingding protein ( RBP ), N - acetyl - glucosaminidase ( NAG ) , fasting blood glucose, blood creatinine ( Scr ) and so on were measured.

方法　测定104例2型糖尿病患者24h白蛋白 ( Alb ) 、 转铁蛋白 ( TRF ) 、 N乙酰βD氨基 葡萄糖苷酶 ( NAG ) 、 免疫球蛋白 ( IgG) 、 视黄醇结合蛋白 ( RBP ) 以及空腹血糖 、 血尿素氮等指标.

来自互联网