她有点烦心的事儿。
She had niggling doubts about their relationship.
她时常对他们的关系有一丝疑虑。
The matter is too small to be worth niggling over.
小小不言的事，不必计较。
杰克(狗)正在啃骨头呢。
She still felt the same niggling doubt: was he really telling the truth?
她仍然无法消除萦绕心头的疑虑：他真的说实话了吗？
She still felt the same niggling doubt: was he really telling the truth?
她仍然无法消除萦绕心头的疑虑：他真的说实话了吗？
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