Pici
abbr. positive ion electron impact 正离子电子碰撞
🗣️ 情景例句
Don't worry, everything will work out in the end.
别担心，到最后一切都会顺利成功的。
We are very interested in your printed pure silk scarves, could you give us some idea about your price?
我们对贵方的印花真丝围巾很感兴趣，请介绍一下贵方的价格好吗？
Officials from Greenwich Observatory have the clock checked twice a day.
格林尼治天文台的官员们每天两次派人矫正此钟。