Ppn
abbr. precipitation 降水; 沉淀; 雨量; proportion 比例
🗣️ 情景例句
She is indifferent to other people's suffering.
她对别人的痛苦漠不关心。
Sincerely hope that your visit here will be worthwhile and meaningful.
衷心希望您的来访有收获且意义深远。
It was necessary, therefore, to invent instruments that neither slumbered nor slept.
因此，有必要发明一种仪器，既不打盹儿，也不睡觉。