Ethnoscience
原始人(关于动物分类等)的自然知识
🗣️ 情景例句
She is giving me piano lessons in exchange for her English classes.
我教她英语，她教我弹钢琴。
A friend in court is better than a penny in purse.
曩中有钱，不如朝中有友。
Oh! What a pity!
哎呀！真可惜！