P. p. d.
[医] 精制蛋白衍化物(结核菌素)
🗣️ 情景例句
Try to come by later for dessert.... Bye.
晚一点尽量设法弯到这 来吃甜点。……再见。
One's mantle falls on somebody.
春风化雨。
Could you tell me what the maximum weight allowance is?
您能告诉我行李的最大重量限额是多少吗？