guō lǐ / de / rè yóu / kāi shǐ / mào yān / le / mā ma / gǎn jǐn / guān xiǎo / le / huǒ

锅里的热油开始冒烟了，妈妈赶紧关小了火。

The hot oil in the pan started to smoke, so Mom quickly turned down the heat.