fussing
v.
小题大做，大惊小怪( fuss的现在分词 );
烦恼，激动（尤指对小事）;
瞎忙一气，过分关心;
例句:
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They became pernickety about small things, always fussing about trifles.
来自E. Figes
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This week he was fussing about the quality of whistleblowing hotlines.
来自THETIMES
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He nearly drove Elsie mad with his fussing.
他的小题大做简直快把埃尔茜逼疯了。
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"Stop fussing," he snapped.
“别大惊小怪的，”他呵斥道。
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Stop fussing about; the bus will arrive on time.
别慌, 公共汽车会准时到达.
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In spite of her sincere, kitchen-table courtesy and fussing efforts to put us at our ease, I've never felt more intimidated.
来自BBC