Ppg
abbr. 聚丙二醇；脉冲程序发生器（ programme pulse generator）；每加仑脉冲数（Pulses Per Gallon）；聚醚
🗣️ 情景例句
I have a suggestion for you ...
我有一个建议……
Take a closer look!
你给我看清楚一点！
Take care of yourself.
照顾好你自己。