You may set metal pot on the fire, but you cannot set it on fire.

你可以把金属制的锅放在火上烧，但是你不能使它着火燃烧。

youdao

There was a pot on the fire, and now and then you could hear it bubble and chunk.

火上有一口锅，不时可以听到锅里噗噗冒泡声。

youdao

Mr. Mouse went to cook the food. He put the pot on the fire, but he put his foot in the fire. The fire burned his foot, and he cried.

老鼠先生去烧饭做茶，他把锅往火上放，可是他的脚却踩在了火上，火烧伤了他的脚，他哭了。

youdao

They have an opening at the bottom for the fire and a place on top to put a pot.

VOA: special.2010.02.01

If I threw it on the fire I could bring a pot of beans to a boil.

NPR: Excerpt: 'Pinocchio'