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
If the owners don't claim the dog in forty-eight hours,
如果狗的主人在四十八小时内不认领，
They only want to solve domestic problems.
他们只希望解决国内的问题。
Get off my back.
少跟我罗嗦。