clandestine trade的用法和樣例：
例句
- It may also destroy commercially valuable trade secrets, or give competitors an unjustifiable advantage.
公開披露還會泄露有商業價值的貿易秘密，或使競爭對手得到不正當的便利。 - You shall offer us the information concerning trade secrets, manufacturing technique and know-how which is necessary to produce products.
你方應向我方提供製造產品所需的貿易秘密，製造技術和專有技術方面的資料。
