optional charges
常见例句
- Rechargeable lithium ion battery power – charges by connecting to your USB port or using the optional Flip Video Power Adapter (sold separately).
充电式锂离子电池电源-费由连接到您的U SB连接埠或使用可选的倒装视频电源适配器（单独出售） 。 - Part D is an optional insurance program that charges a monthly fee in exchange for prescription drug coverage.
FORBES: The ABCDs of Medicare - The company charges for providing the optional financial adviser.
FORBES: Personal Capital Launches Financial Adviser Service From Former Intuit CEO 返回 optional charges