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 live with my parents, Dr. and Mrs. Philip Stewart.
我们和父母住在一起 ，我父母是Philip Stewart夫妇。
He seldom came to see his wife, did he?
她不来看他妻子，是这样吗？
We're going to leave at about seven thirty next Monday morning.
我们打算下星期一早上7：30 左右出发。