Spp
abbr. 太阳光度测定器（Solar Photometry Probe）；系统组（合）件设计（System Package Plan）；定序分组协议（Sequential Packet Protocol）；立管压力
🗣️ 情景例句
I understand you used to be in the construction business,
听说你过去从事建筑业
What we do willingly is easy.
世上无难事，只要肯登攀。
She had believed in me.
她相信我。