Ppo
abbr. 聚对苯氧化物（poly - p - phenylene oxide）；胃蛋白酶最大排泄量（peak pepsin output）
🗣️ 情景例句
We are from Shanghai.
上海。
Is this a network show?
这是不是广播表演？
Tony worked in a lawyer's office years ago, but he is now working at a bank.
托尼曾在一家律师事务所工作，而现在正在一家银行上班。