P. p. d.
[医] 精制蛋白衍化物(结核菌素)
🗣️ 情景例句
She makes a good living as an author.
她靠当作家过着优裕的生活。
Hurricane hits the city.
飓风袭击了这座城市。
but on the second, I applied myself assiduously to the task.
不过，新年第二天，我全力以赴地照着去做了。