toll free
US /toʊl friː/
UK /təʊl friː/
形容词
免费的, 免长途费的
(of a telephone number) that can be called free of charge to the caller
示例:
•
You can reach customer service at our toll-free number.
您可以通过我们的免费电话联系客户服务。
•
The company provides a toll-free helpline for technical support.
该公司提供免费技术支持热线。