Heintzite
n. [矿]硼钾镁石
🗣️ 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。
Super fun.
很好玩的。
Although mankind has undergone no general improvement in intelligence or morality, it has made extraordinary progress in the accumulation of knowledge.
虽然人类有智力和道德上没有得到普遍提高，但在知识积累方面却取得了巨大的进步。