Old Faithful
美
英
- 网络老忠实喷泉；老忠实泉；老忠实间歇泉
n. | 1. an informal name for the best-known geyser in Yellowstone National Park, in northwestern Wyoming. It erupts on average once every 75 minutes for up to 5 minutes, shooting a column of steam and hot water up to 56 m (184 ft) high. |