N-COUNT
（供公众咨询或提供信息用的）热线
A hotline is a telephone line that the public can use to contact an organization about a particular subject. Hotlines allow people to obtain information from an organization or to give the organization information.
例句
...a telephone hotline for gardeners seeking advice...
为园艺爱好者提供咨询的电话热线
Anyone with information should contact the Anti-Terrorist Squad on the confidential freephone hotline.
知情者应通过保密的免费电话热线和反恐小组联系。