port service

例句：

1. 1. The port service is essential for thesmooth operation of the port.
   港口服务对于港口的顺畅运作至关重要。
2. 2. The portservice provides a range ofservices to support trade andcommerce.
   港口服务提供一系列服务以支持贸易和商业活动。
3. 3. The portservice is designed to ensureefficient handling of cargo at theport.
   港口服务旨在确保在港口高效处理货物。