Tpps
[医][=tetraphenylporphinesulfonate]四苯基卟啉磺酸盐
🗣️ 情景例句
I'm sure everything is fine.
我确信一切都很好。
To fall
坠下，掉下
She stamped out the letters 'SOS' in the snow.
她在雪地上踩出了“SOS”这3个字母。