Sppa
abbr. single-pumped parametric amplifier 单频抽运参量放大器; Society for the Preservation of Poultry Antiquities 家禽古迹保护协会
🗣️ 情景例句
Oh. Hi, gang.
噢。嗨 ，你们好。
How much does a round trip ticket to go there cost?
一张去那边的往返票要多少钱？
Don't keep me waiting long.
不要让我等得太久。