1N-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. （供公众咨询或提供信息用的）热线
...a telephone hotline for gardeners seeking advice. [+ for]
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。
2N-COUNT （两国政府首脑间的）热线，直通电话 A hotline is a special, direct telephone line between the heads of government in different countries. （两国政府首脑间的）热线，直通电话
They have discussed setting up a military hotline between Hanoi and Bangkok. [+ between]