You will hear a lecture. After listening to the lecture, in 10 seconds, please speak into the microphone and retell what you have just heard from the lecture in your own words. You will have 40 seconds to give your response.
In the lecture, the speaker talks about vitamin D. At the beginning of the lecture, the speaker says that vitamin D is a group of fat-soluble elements. Also, the speaker mentions that it is not a real vitamin but actually a kind of hormone. According to the speaker, we need sunlight to absorb vitamin D. People who live near the equator have enough amount of vitamin D intake because of enough exposure to sunlight. Lastly, the speaker indicates that vitamin is important for metabolism and our body.