Phasotropy
氨基氢振动异构
🗣️ 情景例句
Pleased to meet you.
很高兴见到 。
My brother took lessons on the trumpet for nearly ten years.
我的兄弟有将近10年的时间听小号的课了。
Yes, I'm afraid I do.I may come later.
是的，恐怕我必须做。我可以晚一点去。