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
do I really have to
我是不是真的有必要
I don't know the answer, but let me ask Mr. Chen to comment on that.
我不知道答案，让我问一下陈先生看他有什么看法。
'Could I have those two tickets please?' I asked.
“我可以买那两张票吗？”我问。