cài yàn shì cóng hǎi zǎo zhōng tí qǔ de tiān rán jiāo zhì，cháng bèi yòng lái zhì zuò guǒ dòng hé bù dīng

菜燕是从海藻中提取的天然胶质，常被用来制作果冻和布丁。

Agar-agar is a natural gelatin extracted from seaweed, often used to make jelly and pudding.