clearance pocket

例句：

1. 1. Thecustoms agent inspected the package for any signs of tampering before clearing it through customs.
   海关官员检查了包裹，以确保没有篡改的迹象，然后才通过海关。
2. 2. The customs clearance process can be time-consuming and costly.
   海关清关过程可能会耗时且成本高昂。
3. 3. The shipment was cleared by customs with no issues.
   货物顺利通过了海关，没有任何问题。