"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.
中文解释
1. gnaw (Old English gnagan) => gnagan (German nagen "gnaw") => nag.2. neigh (拟声词) => nag.3. "annoy by scolding," originally a dialectal word meaning "gnaw".
实用例句
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.