From those, protozoa have 4 genuses, 5 classes and the average quantity is 325.4cells/L, which is 9.7% of total.是什么意思_From those, protozoa have 4 genuses, 5 classes and the average quantity is 325.4cells/L, which is 9.7% of total.在线翻译_英语_读音_用法_例句