packet radio service的用法和樣例：
例句
- Even numbers are used for wireline service providers.
對于無(wú)線(xiàn)服務(wù)提供商要使用偶數。 - Both broadband and wireless service fees are expected to decline as geographic service areas increase, in part due to competition for that business.
隨著(zhù)服務(wù)的地理區域增大，預計寬頻和無(wú)線(xiàn)服務(wù)的費用都將降低，部份是由于商業(yè)競爭。
