undeclared goods的用法和樣例：
例句
- They are looking for conterband contraband, underclared undeclared goods, and people, including terrorists, trying to enter the country illegally.
他們尋找違法交易，未申報的商品，和人員，包括試圖非法入境的恐怖分子。 - The official salaries of most Russian workers hover around a hundred dollars a month, although many earn some undeclared income on the side.
儘管許多人掙得了一些未申報的收入，但官方出具的俄羅斯工人的薪水卻徘徊在每個月一百美元左右。
