Dimercurousammonium
氨汞基
🗣️ 情景例句
No, it's an original. My father's friend is a calligrapher, and I had him make it for you.
没错，这可是真迹。我父亲的朋友是书法家，专门帮你写的。
Now or never.
机不可失，失不再来。
She has been helping her husband for thirty years now.
她已经帮了她的丈夫30年了。