ADJ-GRADED
麻煩的;瑣碎的;細小的
A niggling injury or worry is small but bothers you over a long period of time.
例句
Both players have been suffering from niggling injuries.
兩名運動員一直在忍受輕微的傷痛。
...a niggling worry that the cheap car is also the one that will cause endless trouble.
對廉價轎車會麻煩不斷的一絲擔憂