每日口說挑戰 為什麼我從不穿外套! (Why I Never Wear a Jacket!)

今日挑戰句子

Scientifically speaking, what makes people happy is not just friends and not just family. It's also rays of the sun that are full of Vitamin D.

從科學的角度來說，讓人快樂的不僅僅是朋友，也不僅僅是家人。還有充滿維生素 D 的陽光。