Pso
abbr. polysulfone 聚[化]聚砜
🗣️ 情景例句
You remember Charles Maxwell, Grandpa?
你记得Charles Maxwell吗， 爷爷？
Lightly come, lightly go.
易得易失。
philosophers by selling wisdom and priests by selling spiritual comfort.
牧师靠卖精神安慰为生。