Hercynin
[化] 组氨酸三甲基内盐
🗣️ 情景例句
You had better study hard.
你最好努力学习。
I'm not accustomed to going out after dark.
我不习惯在天黑了以后去外面。
I'm changing my hotel. I'll drop in and leave the new address.
我就要换一家旅馆了。我会顺便再来一趟，把新地址留下来的。