如何使用 "Phlegethon" 造句

1. We need passage across the bloody phlegethon . Can you help us ?
我们要渡过地狱炎河能帮助我们吗?
2. The river styx is perhaps the most famous ; the other rivers are phlegethon , lethe , and acheron .
冥河可能是最有名,其他的是火焰之河,遗忘之河和阿刻戎河。