Significant negative correlations were found between gingival index and coccoid cells, and between probing depth and coccoid cells or rods.是什么意思_Significant negative correlations were found between gingival index and coccoid cells, and between probing depth and coccoid cells or rods.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句