petty niggling 比喻对个人私利的打算 ; 打小算盘
ADJ A niggling injury or worry is small but bothers you over a long period of time. 细小但又持续恼人的 [usu ADJ n]
Both players have been suffering from niggling injuries.
两个选手都经受着持久的伤痛困扰。
...a niggling worry that the cheap car is also the one that will cause endless trouble.
...便宜车也引起无尽麻烦的一种困扰。
The matter is too small to be worth niggling over.
小小不言的事，不必计较。
In Lanchester's design, two balance shafts rotated in opposite directions at twice the crankshaft speed to cancel out the niggling secondary vibrations.
Lanchester的设计中，两个平衡轴以两倍于机轴转速，反向地转动，抵消了无用的次生振动。
He has suffered several niggling injuries and watched his team show a distinct lack of competitiveness.
接连不断的伤病使得他本赛季的赛程支离破碎，缺少了他的球队也毫无竞争力可言。
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