她老是为一些鸡毛蒜皮的小事烦心。

[误] She is always worrying over chicken feather and garlic skin.

[正] She is always worrying over nickel and dime.

注：中文里拿细碎小物作比，英文中则用零钱碎钞为喻，两种文化，表达自然不同了。