monthly fee

基本解释

The company did not say if this would require an extra monthly fee or if it would be included in the basic data plans.
但該運營商沒有說這個功能會不會帶來額外的月套餐費，或者是否包含在其基本數據套餐之中。
Customers can subscribe to the service for a monthly fee of US$ 10 per user and month (Basic Version) or US$ 25 per user and month (Professional Version).
用戶可以包月使用該服務，費用爲每用戶每月10美元（基礎版）或每用戶每月25美元（專業版）。
The latter include subscription services that, for a flat monthly fee of $5 to $10, give consumers unlimited access to an online library of songs that they can play but cannot keep.
新的商業模式包括音樂訂閲服務：消費者每月支付5到10美元的費用，從而能夠無限暢聽在線音樂庫中的歌曲，但是不能保存它們。

It's the first time YouTube is introducing all-you-can-watch channels that require a monthly fee.
NPR: YouTube's New Pay Channels Go From Campy To Kids
First, cloud-based EMM offers a broad range of functionality for a predictable monthly fee.
FORBES: The world moves to cloud. Is it time for cloud-based mobile management?
The GameTanium tablet service is available for Android tablets for a low monthly fee.
ENGADGET: Exent's GameTanium Mobile launches for Android tabs