kǎo / dàn / gāo / qián / xū / yào / xiān / bǎ / kǎo / xiāng / yù / rè / dào / hé / shì / de / wēn / dù / 。

烤蛋糕前需要先把烤箱预热到合适的温度。

You need to preheat the oven to the right temperature before baking a cake.