走私

smuggle

t͡s o ʊ̯ ² ¹ ⁴ ⁻ ² ¹ s z̩ ⁵ ⁵
verb Rare #27,379
smuggle
CH: 他们试图把毒品走私到国外。
EN: They tried to smuggle drugs abroad.

大小本书很容易走私

It’s about the size of a book, so it’s easy to smuggle.

— 窃听风暴 (2006)