translation.en: So bees fly to some plants and they scrape these very, very sticky resins off the leaves, and they take them back to the nest where they cement them into the nest architecture where we call it propolis.
translation.zh: 蜜蜂飞到一些植物上，从叶子上刮取 这些非常、 非常粘的树脂， 然后带它们回巢 粘合成蜂巢结构 我们称之为蜂胶。