1. 琐碎工作：niggle 拘泥小节 | niggling 琐碎工作 | nigh on 接近地

2. 琐碎的,费神的：fledgling 刚学飞的幼鸟,无经验的人 | niggling 琐碎的,费神的 | gangling 瘦长得难看的

3. 为琐事操心的：relive :重新过活, 再体验 | niggling :为琐事操心的 | floodgate :水门, (河流, 运河的)水闸, 防潮水闸

4. 为琐事操心的/萎缩的：niggliite /碲铂矿/ | niggling /为琐事操心的/萎缩的/ | nigh /在附近地/近于.../近/

1. 麻烦的;琐碎的;细小的
A niggling injury or worry is small but bothers you over a long period of time.

e.g. Both players have been suffering from niggling injuries.
两名运动员一直在忍受轻微的伤痛。
e.g. ...a niggling worry that the cheap car is also the one that will cause endless trouble.
对廉价轿车会麻烦不断的一丝担忧

adj

1. (informal) small and of little importance

e.g. a fiddling sum of money
a footling gesture
our worries are lilliputian compared with those of countries that are at war
a little (or small) matter
a dispute over niggling details
limited to petty enterprises
piffling efforts
giving a police officer a free meal may be against the law, but it seems to be a picayune infraction

Synonym: fiddlingfootlinglilliputianlittlepiddlingpifflingpettypicayunetrivial