If something niggles you, it causes you to worry slightly over a long period of time.
例句
I realise now that the things which used to niggle and annoy me just don't really matter...我现在意识到那些曾令我烦恼不快的事情其实无关紧要。It's been niggling at my mind ever since I met Neville in Nice...自从在尼斯见到内维尔后,我一直忐忑不安。
VERB
对…吹毛求疵;挑剔
If someone niggles you, they annoy you by continually criticizing you for what you think are small or unimportant things.
例句
I don't react anymore when opponents try to niggle me...对手找茬惹我时,我不会再理他们。You tend to niggle at your partner, and get hurt when he doesn't hug you.你往往会对伴侣吹毛求疵,如果他不拥抱你,就感到受了伤害。
英英词典释义
Verb
1. worry unnecessarily or excessively;
"don't fuss too much over the grandchildren--they are quite big now"